moved 2 Tests

Moved tests from MyProjectsActivityTest to ProjectActivityTest
(testCopySpriteWithNameTaken, testCopySprite)
changed testCopySpriteWithNameTaken

changed "Copied Sprite name should
habe 1 as suffix!" to "Copied Sprite name should have 1 as suffix!"
Deleted getSprite()-methods from bricks

Deleted getSprite()-methods from bricks (they are already in
BrickBaseType-class)
renaming "b" to "brick", "s" to "sprite"

renamed "b" to "brick" in copy-methods of bricks in
IfLogicEndBrick and LoopEndBrick, "s" to "sprite" in SpriteListFragment
fixed multiple sprite copying in actionmode

Fixed multiple sprite copying in actionmode (first sprite is copied
multiple times)
added copy icon in actionbar

A copy icon should be visible in the Actionbar (if enough space)
Merge branch 'master' of git@github.com:Catrobat/Catroid.git into issue#231_CopySprites
copying of local user variables

Copying of local user variables (not only global variables are copied
now)
added UserVariable (local) Test (testCopySpriteWithUserVariables)
renaming
Merge pull request #270 from Catrobat/issue#231_CopySprites

Issue#231 copy sprites