resolves #48 add support for multifield-nested images

[adamcin]

Description

• Added droptarget attributes and image restype to image fields nested in multifields
• Changed current version in pom to 1.1-SNAPSHOT
• Added executions to integration test phases to actually run the jar against the sample data-config.json file during the build
• Fixed bugs arising from this added smoketest execution

Related Issue

see #48

Motivation and Context

Multifield images should have full support, because developers expect it.

How Has This Been Tested?

tested generation against expected markup tested generated model binding in htl tested drag-drop functionality in author

Screenshots (if appropriate):

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] I have signed the Adobe Open Source CLA.
• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.