Deleting lib folder.
Referencing the CumulusCI project from build.xml.
Leaving only the Cumulus-specific targets and macros in build.xml.
Merge dev into feature/1045-ref-cumulusci
Merge dev into feature/1045-ref-cumulusci
Merge dev into feature/1045-ref-cumulusci
Removing target that it's already in CumulusCI project.
Adding command to update version of all files in main package. Commented out for now, because we don't yet want to upgrade Cumulus to API version 31.
Removed overrides which are no longer necessary as the logic was moved
to CumulusCI
Merge branch 'feature/1045-ref-cumulusci' of github.com:SalesforceFoundation/Cumulus into feature/1045-ref-cumulusci

Conflicts:
	build.xml
Retrieving CumulusCI path from environment variable.
Merge branch 'feature/1045-ref-cumulusci' of https://github.com/SalesforceFoundation/Cumulus into feature/1045-ref-cumulusci

Conflicts:
	build.xml
Merge branch 'dev' into feature/1045-ref-cumulusci

Conflicts:
	lib/ant-salesforce.xml
Using environment variable to define CumulusCI path.
Merge dev into feature/1045-ref-cumulusci
Merge dev into feature/1045-ref-cumulusci
Merge dev into feature/1045-ref-cumulusci
Merge dev into feature/1045-ref-cumulusci
Merge dev into feature/1045-ref-cumulusci
Merge dev into feature/1045-ref-cumulusci
Merge dev into feature/1045-ref-cumulusci