Fetches the error message when manifest upload fails.

Uploading manifest seems to fail frequently when uploading at the
jenkins end. This will help us know the exact error.
Merge pull request #1772 from kbidarkar/manifest-error

Fetches the error message when manifest upload fails.
Fix org & loc creation functions and improve error message for api.

Improves error message for enable_rhrepo_and_fetchid in api.utils.

The indent for submit button for org and location functions is now
fixed.
Also now org and location CRUD functions have flat code and no
generic exceptions.
Merge pull request #1778 from kbidarkar/fix-api-tests

Fix org & loc creation functions and improve error message for api.