#97. Added the text module as an include with the field module, and added text_field_formatter_view() for starters. Added drupalgap_entity_render_content(). Fixed drupalgap_entity_get_info() to properly return entity_info given an entity_type. Changed drupalgap.services.node.retrieve success callback to use drupalgap_entity_render_content().
#97. Improved drupalgap_entity_render_content() by iterating over the items delta values and running through each through the theme() layer. Improved text_field_formatter_view() by iterating over items and building each into a render object and then returning the collection. Added the image module, image_field_formatter_view() and taxonomy_field_formatter_view().  Adjusted the drupalgap.services.* (comment, taxonomy_term, taxonomy_vocabulary) retrieve success call back functions to call drupalgap_entity_render_content() so the entity's content will be assembled. Removed remnants of drupalgap.comment, drupalgap.taxonomy_term, drupalgap.taxonomy_term_edit.
#97. Removed the switch-case statement from drupalgap_entity_render_content().
#97. Changed drupalgap_entity_render_content() to properly render fields by weight order.
Merge branch '7.x-1.x-alpha' of github.com:signalpoint/DrupalGap into 7.x-1.x-alpha-issue-97