fix some introspections, coding style
Merge pull request #652 from havvg/master

fix some introspections
add lcfirst function stub
fix timing issues in TimestampableBehaviorTest
Merge pull request #655 from havvg/feature/lcfirst-stub

add lcfirst function stub
Merge pull request #654 from havvg/hotfix/TimestampableBehaviorTest

fix timing issues in TimestampableBehaviorTest
Merge remote branch 'upstream/master'