Merge pull request #93 from ITArray/os_separator_fix Os separator fix

[master] - updated version to 1.4.5 

[master] - added validation that elements have different size 

[master] - version up to 1.4.3 

Merge pull request #12 from ITArray/1.4.2 [1.4.2] - refactoring and re-sctructure of UIValidator classes.

Merge pull request #6 from ITArray/1.4.1 1.4.1

[master] - added options to disable notifications 

Merge remote-tracking branch 'origin/master' 

Merge remote-tracking branch 'origin/master'