extended try-catch to catch an Unexpected NullPointerException
added gradle adb tasks for apk installs and test runs
Merge pull request #1034 from Catrobat/cat-931

[CAT-931] extended try-catch
move tasks to subfolder; rename some tasks
fix possible runtime exception
Merge pull request #1039 from Catrobat/catchPossibleRuntimeException

catch possible runtime exception
Merge pull request #1035 from Catrobat/adbTasks

added gradle adb tasks for apk installs and test runs
fix fatal exception
Merge pull request #1040 from Catrobat/fixFatalException

fix fatal exception
added Arduino_Send_Brick into the Master branch
ToDo: Functionality + Arduino Function Implementation
Inserted all Function Methods + Fixed all Bugs
Compiles on my Smartphone now without errors + Nullpointer Exceptions
ToDo: Test with Arduino BT Board
added detection for Arduino Functions in all bricks which contain a formula
added Arduino Support in the PreStageActivity.java class
Fixed crash bug when bt-connection timed out
Small bugfix, *crashes when trying connect*
refactoring to new bluetooth stuff
added some missing code
ToDo: Bt Socket is "connected", but nothing is transmitted (see debug output BluetoothConnection)
SendAction is not called from the ArduinoSendBrick (added debug statement)
changed prestage, devicelistactivity, bluetooth connection