output paths

allow user to choose output path

• program is the directory containing heightmap2stl-gui
• source is the directory containing the input image
• custom is a user specified directory

added drag and drop for specifying file

• drag file from windows explorer to application

auto backup tweaks
showing version in ui / log output

version 1.2 - Maui Faster

replaced the embedded version of heightmap2stl.jar.
it runs exceedingly fast now.
What can I say except, you're welcome

a newer version is available - https://github.com/jeremysimmons/heightmap2stl-gui/releases/

version 1.1

add Xms and Xmx java memory heap settings (thanks @philJohnson)
add AutoBackup setting replaces prompt to user to replace existing STL file on every generate

• if set to true (default) will automatically create a backup of the file if necessary
• if set to false, nothing will happen.
  validate heightmap2stl binary matches md5 of embedded version

version 1.0

v1.0

initial version