Refactoring for multiple & optional masks.
maskset selection fixed
	modified:   js/jquery.inputmask.js
fixes & fixes
delete, backspace handling rtl
fix handling lastvalidposition with isvalid strict
backspace and delete for normal and rtl seems correct + fix for home end
Bower support
Merge pull request #236 from gustavohenke/dev

Bower support
enhance checkval functionality
Merge branch 'dev' of https://github.com/RobinHerbots/jquery.inputmask into dev
fix ctrl-x + select & backspace & delete behavior
	modified:   js/jquery.inputmask.js
fix isrtl
correct mask switching with multimasks on delete & backspace
fix select and delete behavior for multimask
edge non-mask fixes.
added skipRadixDance option + some progress in numerics with the new multimask implementation
fix decimals + selection with shiftkey
fix selection