UD-235: added validation for password
UD-235: changed format of output error message
UD-253: add developer role too, when setting user role - workspace/admin.
Merge with master
UD-238 Fixed content of 'Edit developer' form
Merge branch 'master' of github.com:codenvy/user-dashboard
Merge branch 'master' of https://github.com/codenvy/user-dashboard