z-index handle changed.  every value used only once from 1 to n.
Refactor handleAction* methods
fix broadcast issue

added precomputation
refactor broadcast bricks
replace object with string matching
smarter precomputation

added regression tests

improve performance

Fixing tests and refactoring
quickfix for issue #877
Merge branch 'broadcastfixTestRebased'
Merge pull request #998 from Catrobat/issue#877

quickfix for CAT-879
Merge pull request #1006 from Catrobat/cat#981

fixes CAT-981, CAT-982

z-index layer handle changed. every value now is only used once (from 1 to n)
change static import order
Merge pull request #1022 from Catrobat/changeStaticImportOrder

change static import order
# This is a combination of 2 commits.
# The first commit's message is:

fixed issues #910, #909 and #906

Feature_Backpack_Enabled can be set in build.gradle

changed the strings accordingly

removed checkstyle warning

added check if BuildConfig.FEATURE_BACKPACK_ENABLED is true

# This is the 2nd commit message:

fixed TODO