New task: Parallel
Merge branch 'Storeable' into parallel
Diff semantic added
Some diff methods
Some implementation andt tests. Thread local but no locks ye
small add in storeable
Merge branch 'Storeable' into parallel
Added locks to provider
Locks for table commits
And some more
Fair policy added
Small bug in table locks fixed
Merge branch 'Storeable' into parallel
Something strange in travis build
Fixed some read-write-lock problems
Travis problems
Merge branch 'Storeable' into parallel
Implemented new interfaces
small bug fixed
Merge branch 'Storeable' into parallel

Conflicts:
	src/ru/fizteh/fivt/students/AlexeyZhuravlev/storeable/test/StructuredTableTest.java