v1.0.0-rc9

4c57bef [init] Update command service definition. (#89)
436119d [init] Update command (#88)
8edde0b [console] Update DrupalFinder version. (#87)
d7cbcc0 [console] Do not default root option. (#86)
8ce8511 [console] Add multiple alias feature. (#85)
65d3a86 [console] Add Drupal finder dependency. (#84)
f7e2724 [console] Avoid updating this->configurationDirectories. (#83)
1fa82c5 [console] Read aliases from core. (#82)
24aa945 [console] Improve aliases read. (#81)
ef311ad [console] Improve generate chain output. (#80)
699985b [console] Fix find method, avoid autogenerated command alias. (#79)
60ad2cd [console] Detect ConfigurationDirectories. (#78)
08a1655 [console] Update stecman/symfony-console-completion version. (#77)