Merge pull request #29 from prakashpp/develop

Fixed view for root category #4241
Replaced urls.xml with nereid(3.0.7.0) route
Merge pull request #31 from tarunbhardwaj/develop

Replaced urls.xml with nereid(3.0.7.0) route
Future proof the nereid version dependency
Refactored product images #4408

Added function fields to get image according to dimensions.
Added resize method for user specified dimensions.
Added Xml view for image_sets.

Review Id : 9773002
Merge pull request #32 from goyal1092/feature/task-4408

Refactored product images #4408
Added Coveralls #4507
Merge pull request #33 from aroraumang/feature/task-4507

Added Coveralls #4507
Default image function field in product