added time change notification in Simulator
renamed RDO* handlers
added time change notification after simulation start
fixed integer comparison bug
changed addSubscriber behaviour to builder-style
divided model execution into init and run phases
refactored model execution termination via subscribing mechanism
added patterns to database (dpt + events, initial implementation)
fixed database constants size from bits to bytes
fixed plugin.xml in ui project (handlers rename)
fixed type size constants in database
Merge github.com:k-alexandrovsky/rdo-xtext into tracer
tracer: pattern trace implementation (#3)
tracer: top to bottom source code readability (#3)

Changed methods order in Tracer class to be readable from top to bottom.
No changes in tracer logic were made.