Integration of prompt to sync in facebook sidebar.
Added event send to extension.
Messages for sync activated after-notice.
Merge branch 'sync_integration_sidebar_prompt' of github.com:Crystalnix/BitPop into sync_integration
Fixes for various parts of project.

- sync_setup_handler syntax fixes
- friends sidebar show/hide fixes (mac)
- fixes for facebook sync login from within the
  sidebar
- layout problems fixed on promo page
- increased timeout for "Jippi!" proxy extension
  message
- receive the latest 25 messages on each click
  of the chat button
- controller logout url fixed
- controller invalid variable name fixed