EOD check in.
Merge remote-tracking branch 'merchello/1.3.0' into 1.3.0
Merge remote-tracking branch 'merchello/1.3.0' into 1.3.0
#M-309 Fixed
Bumps Merchello dev version to 1.2.12 for MyGet publish.
Merge pull request #755 from rustyswayne/1.3.0

Resolves several CustomerApi issues identified by back office build out.