Update to curl from private repo

Requires following env vars:

GITHUB_TOKEN
GITHUB_OWNER
GITHUB_REPO
Update to use bash double bracket notation for tests
Capture ant_status for evaluation
Merge branch 'master' into feature/93-deploy-to-pvt-github-repos
Use $? to determine exit status
Update to use double brackets in evaluation constructs
Implementation of #95 to allow managed only code which is commented in
unmanaged deployments
- Added new macro stripManagedToken
- Added createManagedSrc and revertManagedSrc targets
- Call createManagedSrc and revertManagedSrc from deployCIPackageOrg
Merge branch 'master' of https://github.com/SalesforceFoundation/CumulusCI into feature/95-managed-only-code
Fix codeship exit status evaluation
Replace ant_status with $?
Merge branch 'feature/fix-codeship-exit-code-evals' into feature/95-managed-only-code
Merge branch 'master' into feature/93-deploy-to-pvt-github-repos
Merge pull request #100 from SalesforceFoundation/feature/93-deploy-to-pvt-github-repos

Feature/93 deploy to pvt GitHub repos
Merge branch 'master' into feature/fix-codeship-exit-code-evals

Conflicts:
	ci/codeship.sh
Merge branch 'feature/fix-codeship-exit-code-evals'
Merge pull request #96 from SalesforceFoundation/feature/95-managed-only-code

Allow managed only code which is commented in unmanaged deployments
Merge branch 'master' into feature/86-better-test-matching