Added gradle to support cross platform building the Sage.jar

[stuckless]

Eventually I'll add direct support for the other pieces as well.

See the BUILDING.md file information on how to use gradle, but the quick guide is basically just run ./gradlew or gradlew.bat and it will compile and build the Sage.jar

[stuckless]

The conflict is on the .gitignore file... my changes are pretty small, so it should be an easy merge.

[Narflex]

Can't you just rebase. :) Then I can click the magic button rather than having to go through the whole command line process.

[stuckless]

Ok... I'll rebase :) But, as for the MiniClient... that's my next goal is to create a sageMiniClient jar and compare with you miniclient jar. For now, this is attempting to mimic the build of the server Sage.jar as per the buildsage.sh script.

[stuckless]

Ok, you should be ok to merge.

[Narflex]

Thanks....do you happen to know if there's an easy way in GitHub to see the diff for the full set of changes being merged? It's annoying to have to look through them all independently (and the merges, rebases, etc.) I'd like to see one clean diff for what's being changed. :)

[Narflex]

Nevermind the question...I just found the 'Files Changed' tab which gives me what I was looking for. :)

[Narflex]

Don't forget to add yourself to the CONTRIBUTORS and AUTHORS files. :)