#359 LifecycleTest: implement and use MkStep and MkScenario
LifecycleTest: fix ImportOrderCheck check
MkStep: fix AvoidFieldNameMatchingMethodName, BeanMembersShouldSerialize and MemberNameCheck checks.
#401 Removed duplicated call sshd.start()
#392 using dynamo mocks
Merge remote branch 'fork/401'
Merge remote branch 'fork/359_mkscenario_and_mkstep'
#419 Added definition of tasks table. Test passes.
Merge remote-tracking branch 'upstream/master'
#419 Fix for qulice
#369 Fixed with unit test.
#369 Fix after review
#369 Fix after review
#439 tests skipped for MacOS
layout
NginxTest: unbreak unit tests under MacOS with BSD's sed.

Replaces usage of sed by similar perl command.

I also revert a small part of changes from 7321217596f69c2e4b312862a9407bea4f96c8c4
commit where egor@ disabled these tests under MacOS.

Resolve #447 (and also fix #439 properly).
tests skipped
#449 Refectored update config methods
#449 Fix after review
#372 Implementation of txn method