Update different validator

Changed different validator to be able to check multiple fields for cases where there are more than two to compare.
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/AlaskanShade/bootstrapvalidator into AlaskanShade-master

Conflicts:
	src/js/validator/different.js
Merge branch 'master' of https://github.com/AlaskanShade/bootstrapvalidator into AlaskanShade-master

Conflicts:
	src/js/validator/different.js
Merge branch 'AlaskanShade-master'
#345, #454: The different validator allows more than a 2-way comparison, thanks to @AlaskanShade