Fix button widths on formula editor keyboard and add regression test

add regression test for button widths on formula editor keyboard

fix button widths in formula editor keyboard

Add assertion error message for FormulaEditorKeyboardTest/testLayout

Change FormulaEditorKeyboardTest/testLayout: all weights in a row have to add up to 1

fix number type in assertEquals

get views dynamically

remove comments
Merge pull request #904 from StefanTischler/master

#668 fix formula editor button widths and add regression test
improve SourceTest
use StringBuilder where possible
made RegEx faster
Merge pull request #935 from Catrobat/improvedSourceTests

improve SourceTests
removed japanese strings
Merge pull request #947 from Catrobat/no_japan_strings

remove japanese translation
fixed PMDWarnings.

fixed md5 checksum error.
Merge pull request #950 from Catrobat/PMDWarningsPart9

fixed PMDWarnings.
issue#813 Added new testcase, fixed bug
Merge pull request #945 from Catrobat/issue#813

issue#813 Added new testcase, fixed bug
Added option for robot albert in the settings-activity

First attempt to implement Robot Albert into Catroid.
first version of the robot-albert-motor-brick
first attempt for a RGB-LED-Brick
searching for connection-losing bug

trying to solve connection lost bug

connection-loss after ~1min and loop after bluetooth-activation seams to be fixed
reading the sensor-packet from robot albert works (with a lot of debugging output)

bugfix
Bricks: min-max values in bricks set, if value to high or low; Front-LED-Brick added
First Version of the distance sensor brick(s)
Robot albert distance sensors implemented (in formula editor)
Beginning to write bluetooth-tests for robot albert. Removed some Lint errors/warnings
Added Testcases and fixed a bug with the distance-sensor-implementation in the formula editor

fixed Testcase: FormulaEditorEditTextTest.testComputeDialog with Robot Albert Implementation