#JC-1144: Added escape html tool
#JC-1144: UI improvements:
*New borders
*Answers counter
*New colors for posts
#JC-1144:BugFix in ReadOnlySecurityService:TransactionalUserService#getCurrentUser returns
AnonymousUser object instead of null when user not yest logged in:
*Corrected condition in ReadOnlySecurityService
*Corrected documentation
#JC-1144: New arrow style: red and green triangles
#JC-1144: Added possibility to work with permissions in velocity template:
*Created PermissionTool to check if user have some permission inside velocity template
*Permissions applied by analogy with topics
Next step: Fix UI for users without permission
#JC-1144: Fixed UI for users without permissions