Allow to connect buildings with different key value
Implement basic RUIAN functionality
Allow building modifying
Add ability to update building type and id from ruian
Add configuration panel; adjust traced object position; add ruian id and build type
Fix some ConnectWays issues; small updates

1) Do nothing when newly traced object is equal to already existing object.
2) Show notifications
3) Nicer icon
4) Updated translation
5) Add TracerUtils file
Exclude build directory
Change server reply format to JSON. Add more keys to building (levels, flats, start_date)
Eliminate most of duplicated nodes, still not fixed for 100%
Add building:ruian:type key - link to RUIAN building type code
Update README.md
Merge duplicated nodes
ConnectWays - refactored
ConnectWays - issues from testing
Update lang files from svn
Cleanup
Sync with svn
Merge branch 'master' into ruian

Conflicts:
	data/cs.lang
Another update of the ConnectWays class
Cleanup