Removed hard dependency on libstrophe 0.8.6 from install-all.sh

Allows getting the latest libstrophe code including SCRAM-SHA-1
support
Removed bookmarks todo
Paging fixes

- Include empty line when showing end page
- Switch off paging when last line and empty line visible
Tidied console presence messages
Always update UI in event loop, removed updates from rest of code
Added back switching win on new outgoing message
Show message when room requires config
Added /room config command
WIP - Handle /room config commands
Send instant room request
Send room destroy iq on /room config cancel
Handle /room config cancel
Validate usage of /room config command, added UI messages
Added /ping command
Updated help for /ping
Fixed spelling mistake
Fix room config check for servers that don't send 110 status
Added /room config edit and /room config cancel
Added ID handler for room config form
Parse data form for room configuration