Stage dylibs in 'calabash-dylibs'

calabash.dylibs is a confusing name because it is confusing; there
is no .dylibs directory naming convention on MacOS.
Check for 'install lib' script name

We need this test to pass against the released toolchain
as well as the 'master' toolchain, but the script names
are different.
Log pass/fail of calabash-ios gem scripts
Need to test against run_loop 'master'

I am not overly happy about this.  I would rather test against
the 'released' version, but until we figure out a strategy for
testing 'develop' versus 'production' this will have to do.

We might be able to roll this back once run_loop 1.0.0pre4 is
released.
Merge pull request #58 from calabash/feature/change-dylibs-staging-directory

change dylibs staging directory and stabilize CI