SLICE-15 Added appName field to Validate Tag.
SLICE-15 validate tag tld file updated
SLICE-15 Refactoring fixes, added new method to SliceTagUtils.java
Merge branch 'master' into slice-15

Conflicts:
	slice-core-api/src/main/java/com/cognifide/slice/api/tag/SliceTagUtils.java
wording
Merge pull request #23 from Cognifide/slice-15

Slice-15 done