Fix bug 969605
Fix bug 969605

Validate control script is executable only if it exists
fix for bz970008
return HTTP Status code 200 from DELETE instead of 204
fix sanity tests
Merge pull request #2735 from pmorie/bugs/969605

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Merge pull request #2738 from rajatchopra/master

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Merge pull request #2666 from lnader/rest-api-version-1.5

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delete downloaded cartridge when component is deleted
Merge pull request #2740 from danmcp/master

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Merge pull request #2741 from rajatchopra/master

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