[REFACTOR] Supply data with fragments.
[REFACTOR] Save state of History Fragment in data member.
[REFACTOR] Disabled onBackPressed method.
[REFACTOR] Free reference to Context keeping in SpawnDialog.
[REFACTOR] Pass context to SpawnDialog instance.
[REFACTOR] Partially implemented UItoCore module.
[REFACTOR] Style fix.
[REFACTOR] Using UItoCore in fragments, attach fragments' state data
members, pass onBackPressed() invocation through UItoCore module.
[COMMENT] Added tsk - think about moving mState initialization in
further lifecycle methods in Fragment classes.
[COMMENT] Find proper place for attachState(), detachState().