validate template draft
Fatal level casting fixed
unknown pattern error test added
don't throw exception on bad regexp
any pattern files support
webservers pattern file extracted
NGNIX pattern removed
properties and castings inside predefined templates support
Predefined patterns tests fixed. Underscore support in property name
recurrent compilation fixes
URIHOST property port removed to avoid complex properties nesting. Support properties with the same name
Merge branch 'feature/validate_template_before_save' into develop