IDEX-1110: add methods for validating file/folder name
fix regexps, allow usage '.' in file name
Allow to use dot char in folder's name
RELEASE:Update maven parent to latest tag
[maven-release-plugin] prepare release 0.15.0
[maven-release-plugin] prepare for next development iteration
RELEASE:Update maven parent to latest snapshot
Check properties are not null before dereferencing them