fix some lint warnings

- remove unused xml files in res/color
- fix messup in device_list.xml; sp was used instead of dp;
  textview not needed (no text), because just a divider for
  list parts.
- remove useless parent LinearLayout
- remove useless sub layouts (no id, no background, no children,
  no style)
- use Double.valueOf instead of new Double()
- modify Manifest of test and uitest package:
    disable warnings for ApplicationIcon and Backup
remove unused code

- IconMenuAdapter and CustomIconContextMenu not needed (any more)
- remove res/color directory
- remove unused colors
fix lint warnings

- ignore SmallSp warning in AboutDialog; the text has to be that small
- supress NewApi warnings for ABS style items
- replace hardcoded /sdcard directory in Filetests
- fix warning #recycle(); MotionEvents should always call recycle()
Open contextmenu when tapping "When..." bricks

Tapping on a "When..." brick now opens the same contextmenu, that is opened when tapping on all other bricks.

- Tapping on a "When..." brick is now handled by the BrickAdapter (onClickListener)

- Deleted onCreateContextMenu and onContextItemSelected from ScriptFragment, since they are no longer needed

- Changed all Tests, where "When..." bricks are tested (onLongClick -> onClick)

- Changed all Tests, where a click on a "When..." brick is used to gain focus
Merge pull request #562 from Catrobat/fixLintWarnings

Fix some lint warnings
Merge pull request #559 from Catrobat/issue#463

Issue#463
fix some lint warnings

- remove unused resources
- add @TargetApi in UiTestUtils - android.R.id.home needs minSdk 11;
  we have set 10 in our manifest; but the code is only executed if
  version is at least 4.0.3, so warning can be supressed
- fish.jpg IS a .png file
- menu_script.xml unused due to recent changes
Merge pull request #564 from Catrobat/fixLintWarnings

Fix of some lint warnings
Merge branch 'master' into SOR-facedetection
issue SOR-8 added test for preview frame