changed some more strings
even some more
load close question strings
merged master and updated help strings
updated color chooser predefined colors and colors of rgb strings
Merge branch 'master' into refine_strings
fixed exit dialog problem
changed exit dialog problem
fixed tests
fixed tests
updated version number to 0.8beta
Merge pull request #107 from Catrobat/refine_strings

Refine strings
Merge branch 'master' into removeWarnings