update rails
fixing tests
speed up compiling assets
new syntaxis for paperclip
updated deploy script
exclude blank values in filters array
fixed crashes after updating solr
fixed translations
fixed adding comments and answers to comments
fixed tests for comments
implemented pending tests
writing feed object to db is not necessary
added rel=nofollow to external links
translation for experience levels
don't escape apostrophe in addthis params
clean empty values for filter in broadcast message
partial for top banner
invitations to calendar
fixed tests