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added icons to popup template
styles for icons
delete from connections after sever
added birthday to user model and method for parsing user's birthday into date format
Merge pull request #23 from shidel-dev/lnm/user-bday

Lnm/user bday
added validations on user model for email format, email uniquness, password length. added placeholders on user creation form.
Merge pull request #24 from shidel-dev/lnm/user-validations

added validations on user model for email format, email uniqueness, passw...
adjust buttons after templete load
bar method for deleting nodes
styles for popup
extended template
Adjust CSS of goal window
Add saving title to node functionality
Adjust goal window divs
Merge branch 'master' into st/popup
Change gemfile to ruby 1.9.3
delete node and its connections
complex connections can now be deleted on node deletion
Merge pull request #25 from shidel-dev/st/popup

St/popup