Solved emission date issues
Solved manual and electronic bills date issues
Created ExportException
Solved empty fields issues
Merged with master
Solved empty control code issue
Solved invalid email issues
Solved max length issues
Updated fields sizes
Solved decimal point issues
Merge pull request #24 from francomontiel/MenuButtonsNReturn

Merged menu buttons n return updates
Solved date issues
Merged with master
Renamed ExportFragment class
Updated version
Merge pull request #25 from AllanLeon/SolveTableProblems

Merged solve table problems branch
Improved main menu interface
Improved folder icon
Merge remote-tracking branch 'upstream/master' into MenuButtonsNReturn