Bugfixes and improvements.

• Passwords can be changed now #15
• E-Mail-Addresses can be changed #11
• Admin can change User-Account-Type #10
• Database-Export #5
• Proper naming #6
• Proper romanization #4
• work towards Rails 4 upgrade and Ruby 2.2 #1

• Always show edit button for admin #44
• Show own articles for non-admin-users #42

Bugfixing

• remote execution for rake commands 1207f36
• Pagination problems #40
• Editing issues #39
• Config-Option for logging #41