junit
Merge https://github.com/dkomanov/fizteh-java-2014 into HEAD
Some fixes
A lot of fixes

1 - Added SelfExceptions classes
2 - Wrong Input working correctly (I hope)
3 - Some beauty changes
4 - Fixed commit and rollback
ready to rewiew
Ready to review, again.
fix exceptions
checkstyle
checkstyle2
Merge pull request #410 from Sdernal/master

Korzun Vladislav 397, JUnit