Merge pull request #97 from Proplex/master

Change "peers connected" to "users in chat"
Hide send file button for groupchats
Workaround for discarded messages from missing groupchatcontacts
small formatting fix for the tox vapi
Added GLib.Actions for common tasks
Workaround for gtk+3.4 menuitems not deriving from Gtk.Actionable
using actions for edit-user and copy-id
fixes #74 (warning about whitespace in ids), reworked the add_friend_dialog a bit, removed dependency to ResourceFactory
fixes #67 (set file permissions to u+rw only)
Fix for "" entries in the sidebar
Small terminology fix
Added VENOM_VERSION_RELEASE variable to allow packaging information in the binary
rc file fixed
fix for setting default value for VENOM_VERSION_RELEASE accidentially to OFF
Renamed TextConversationView to ConversationTextView
renamed implication tag to quotation tag, tagging uris (no click support yet though)
added a basic search entry for conversationtextview
small fix for wrong search mode
Moved some common functionality into a new widget mimicking a gtkentry
Added is_typing support (disabled by default)