z-index handle changed.  every value used only once from 1 to n.
Fix most of InflateParams, ignore others
Fix GradleOverrides
refactor Lint options

- only specific Lint ignores reside in lint.xml
- remove unused res-folders
- ignore unused drone.png file - code currently commented
- some code formatting (auto formatter)
notification icon changed to black/white
Update README.md

Adding link to new setup of the working environment
fix inflater issues

all fragments which are inflated using FragmentManager,
need to use the three parameter inflate method with attachToRoot
set to false; otherwise the app crashes with following error message:
"The specified child already has a parent".
Three parameter call of inflate is also used for adapters - see
http://www.doubleencore.com/2013/05/layout-inflation-as-intended/.
using the inflate method without setting attachToRoot caused
"java.lang.UnsupportedOperationException: addView(View, LayoutParams)
is not supported in AdapterView"
update gradle check task

- move checkstyle and lint config files to new config folder
- remove .checkstyle files, which are only needed for Eclipse
- output folder for lint and checkstyle results set to build/reports
- activate pmd 5.1.1 (gradle 1.12 default is 4.3)
- toolVersion property is deprecated - but haven't found a workaround
- rulesets with excluded rules are moved to specific
ruleset files containing only one ruleset.
one general ruleset file did not work - excluded rules were ignored.
see http://stackoverflow.com/a/23546851/2093483
- gradle check task now executes pmd as well
unstable testcase in ProjectUpAndDownload fixed.
unstable testcase in MainMenuActivity fixed.
Merge pull request #1011 from Catrobat/cat-1049

testcase ProjectUpAndDownloadTest.testUploadStandardProject fixed
Merge pull request #1007 from Catrobat/cat-943

CAT-943
notification icon changed to black/white
update gradle build file

- update to gradle build 0.12 (needed for android studio 0.8+)
- rename android plugin (there is a lint check for this)
- ignore new warnings; should be fixed in the future - left a comment
Merge pull request #1012 from Catrobat/lint_fixes_kaufi

enable static code checkers for gradle
changed http to https connection
Merge pull request #1020 from Catrobat/ServerCallTestFix

Fix for failing ServerCallTests
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