Fix JC-1760:
Error messages for empty 'Username' and 'Password' fields should be in the same style
Error message for empty 'Password' field should be 'Password length must be between 1 and 50 characters' instead of 'Must not be empty'
Fix full error JC-1760:
Sign Up: Error messages in 'Username' and 'Password' fields must be the same
JC-1760
Added new annotation NotBlankSize and new validator NotBlankSizeValidator
Changed UserDto
added missing scripts
Update global.js
It was a nice april's fool joke attempt, but stupid functional tests have ruined all the fun(
#JC-1830:
* Add editor for avatar field in editedUserDto in order to set default avatar if user set invalid avatar via firebug or identical tools
* Add unit-test for editor
* Add editor dependency to controller constructor
Merge branch 'master' of github.com:jtalks-org/jcommune
#JC-1842:
* Add flash attribute to check displaying jDialog about successfull password changing
* Add  jDialog on js to show message if user changed password
* Add translation for message
* Update unit-test for controller
Actions related to mails are logged thoroughly.

Now, we log info about the fact that we've sent (or not sent) the mail as well
as its receiver. Additionally, if mail sending took long time (more than
5 secs), then we log this info.
Updated log4j config since it was writing with encoding that doesn't support cyrillic.
#JC-1842:
* Move including js to decorator.jsp
* Move translation to jsMessages.jsp
Merge branch 'master' of github.com:jtalks-org/jcommune
#JC-1842: Modal js window with message for password changing
* Include js modal window to wro.xml
#JC-1842: Changes in show modal window algorithm
* Add js variable to check to display modal message or not
reverted april 1st scripts
JC-1760:
Hardcode values ​​in properties files
#JC-1842: Javascript undefined value error fix
* Add condition to javascript - if marker-field to display modal message is not set we set default value.
Merge branch 'master' of github.com:jtalks-org/jcommune
JC-1760
Corrected 0 to 1 in the message