IOExceptions
Parallel commit
synchronized TableProvider
diff initialization
UnitTest
ThreadLocal InitialValue override
Ugly parallelGetAndPutTest
Bug in change count fixed
diff clear on commit
try-finally around readlock
not so ugly unit test
fixed minor mistakes
Merge pull request #372 from Kamilot/master

Мусин Камиль, 295 группа, Parallel, Вариант (1, 1, 2)