Always display the version of pop/plush/other libraries used

[kteb]

If we are using dep all details about the libraries are displayed with buffalo info

(example of buffalo version with dep)

### Dep Version
dep:
 version     : devel
 build date  :
 git hash    :
 go version  : go1.9.1
 go compiler : gc
 platform    : linux/amd64

### Dep Status
PROJECT                                       CONSTRAINT     VERSION        REVISION  LATEST   PKGS USED
dmitri.shuralyov.com/text/kebabcase           branch master  branch master  40e40b4   40e40b4  1
github.com/BurntSushi/toml                    v0.3.0         v0.3.0         b26d9c3   b26d9c3  1
github.com/ajg/form                           v1.5           v1.5           cc29540   cc29540  1
github.com/cockroachdb/cockroach-go           branch master  branch master  59c0560   59c0560  1
github.com/davecgh/go-spew                    v1.1.0         v1.1.0         346938d   346938d  1
github.com/daviddengcn/go-colortext           1.0.0          1.0.0          17e75f6   17e75f6  1
github.com/dustin/go-humanize                 branch master  branch master  02af396   02af396  1
github.com/fatih/color                        v1.7.0         v1.7.0         5b77d2a   5b77d2a  1
github.com/fatih/structs                      v1.0           v1.0           a720dfa   a720dfa  1
github.com/fsnotify/fsnotify                  v1.4.7         v1.4.7         c282820   c282820  1
github.com/go-sql-driver/mysql                v1.4.0         v1.4.0         d523deb   d523deb  1
github.com/gobuffalo/buffalo                  ^0.12.3        v0.12.3        2561960   2561960  9
github.com/gobuffalo/envy                     ^1.6.3         v1.6.3         2d0f467   2d0f467  1
github.com/gobuffalo/fizz                     v1.0.1         v1.0.1         25461ee   25461ee  2
github.com/gobuffalo/makr                     v1.1.0         v1.1.0         2f752af   2f752af  1
github.com/gobuffalo/packr                    ^1.11.1        v1.11.1        bd47f28   bd47f28  1
github.com/gobuffalo/plush                    v3.7.7         v3.7.7         2ec029f   2ec029f  5
github.com/gobuffalo/pop                      v4.6.0         v4.6.0         d450dce   d450dce  5
github.com/gobuffalo/suite                    ^2.1.2         v2.1.2         e731d05   e731d05  2
github.com/gobuffalo/tags                     v2.0.7         v2.0.7         96c7cdf   96c7cdf  3
github.com/gobuffalo/uuid                     v2.0.0         v2.0.0         3a9fb6c   3a9fb6c  1
github.com/gobuffalo/validate                 v2.0.0         v2.0.0         42d8db6   42d8db6  2
github.com/gobuffalo/x                        branch master  branch master  11ca13c   11ca13c  1
github.com/gorilla/context                    v1.1.1         v1.1.1         08b5f42   08b5f42  1
github.com/gorilla/mux                        v1.6.2         v1.6.2         e3702be   e3702be  1
github.com/gorilla/securecookie               v1.1.1         v1.1.1         e59506c   e59506c  1
github.com/gorilla/sessions                   v1.1.1         v1.1.1         03b6f63   03b6f63  1
github.com/jmoiron/sqlx                       branch master  branch master  0dae4fe   0dae4fe  2
github.com/joho/godotenv                      v1.2.0         v1.2.0         a79fa1e   a79fa1e  1
github.com/lib/pq                             branch master  branch master  90697d6   90697d6  2
github.com/markbates/going                    v1.0.0         v1.0.0         0576708   0576708  3
github.com/markbates/grift                    ^1.0.0         v1.0.0         76f9361   76f9361  1
github.com/markbates/hmax                     v1.0.0         v1.0.0         800e180   800e180  1
github.com/markbates/inflect                  v1.0.0         v1.0.0         dd7de90   dd7de90  1
github.com/markbates/pop                      ^3.31.0        v3.31.0        78ca324   36b03cd  4
github.com/markbates/refresh                  v1.4.0         v1.4.0         fab0ab1   fab0ab1  2
github.com/markbates/sigtx                    v1.0.0         v1.0.0         daa2e5f   daa2e5f  1
github.com/markbates/validate                 ^1.0.0         v1.0.0         cd8cc34   cd8cc34  2
github.com/markbates/willie                   v1.0.0         v1.0.0         6793494   6793494  1
github.com/mattn/anko                         branch struct  branch struct  158d91c   158d91c  27
github.com/mattn/go-colorable                 v0.0.9         v0.0.9         167de6b   167de6b  1
github.com/mattn/go-isatty                    v0.0.3         v0.0.3         0360b2a   0360b2a  1
github.com/mattn/go-sqlite3                   v1.9.0         v1.9.0         25ecb14   25ecb14  1
github.com/microcosm-cc/bluemonday            branch master  branch master  f0761eb   f0761eb  1
github.com/mitchellh/go-homedir               branch master  branch master  3864e76   3864e76  1
github.com/monoculum/formam                   v3.0           v3.0           99ca9dc   99ca9dc  1
github.com/nicksnyder/go-i18n                 v1.10.0        v1.10.0        0dc1626   0dc1626  4
github.com/pelletier/go-toml                  v1.2.0         v1.2.0         c01d127   c01d127  1
github.com/pkg/errors                         ^0.8.0         v0.8.0         645ef00   645ef00  1
github.com/pmezard/go-difflib                 v1.0.0         v1.0.0         792786c   792786c  1
github.com/russross/blackfriday               branch master  branch master  11635eb   11635eb  1
github.com/satori/go.uuid                     ^1.2.0         v1.2.0         f58768c   f58768c  1
github.com/serenize/snaker                    branch master  branch master  a683aaf   a683aaf  1
github.com/sergi/go-diff                      v1.0.0         v1.0.0         1744e29   1744e29  1
github.com/shurcooL/github_flavored_markdown  branch master  branch master  8913699   8913699  1
github.com/shurcooL/go                        branch master  branch master  9e1955d   9e1955d  4
github.com/shurcooL/go-goon                   branch master  branch master  37c2f52   37c2f52  1
github.com/shurcooL/graphql                   branch master  branch master  62c9ce0   62c9ce0  1
github.com/shurcooL/highlight_diff            branch master  branch master  09bb405   09bb405  1
github.com/shurcooL/highlight_go              branch master  branch master  78fb10f   78fb10f  1
github.com/shurcooL/octicon                   branch master  branch master  c42b0e3   c42b0e3  1
github.com/shurcooL/sanitized_anchor_name     branch master  branch master  86672fc   86672fc  1
github.com/sirupsen/logrus                    v1.0.5         v1.0.5         c155da1   c155da1  1
github.com/sourcegraph/annotate               branch master  branch master  f4cad6c   f4cad6c  1
github.com/sourcegraph/syntaxhighlight        branch master  branch master  bd320f5   bd320f5  1
github.com/stretchr/testify                   v1.2.2         v1.2.2         f35b8ab   f35b8ab  3
github.com/unrolled/secure                    branch master  branch master  8287f38   8287f38  1
golang.org/x/crypto                           branch master  branch master  a49355c   a49355c  3
golang.org/x/net                              branch master  branch master  32a936f   32a936f  3
golang.org/x/sync                             branch master  branch master  1d60e46   1d60e46  1
golang.org/x/sys                              branch master  branch master  3c6ecd8   3c6ecd8  2
google.golang.org/appengine                   v1.1.0         v1.1.0         b1f2635   b1f2635  1
gopkg.in/yaml.v2                              v2.2.1         v2.2.1         5420a8b   5420a8b  1

It could be useful to have this information even when dep isn't used.