Merge pull request #268 from bircher/7.x-1.x-alpha-variable_delete

Add variable_del().
Merge branch '7.x-1.x-alpha' into 7.x-1.x-alpha-offline
Change _drupalgap_form_submit() to call _drupalgap_form_validate() after the form's validation function(s), if any.
Update binary.
Merge branch '7.x-1.x-alpha' of https://github.com/signalpoint/DrupalGap into 7.x-1.x-alpha
Remove jDrupal dev and rc2.
Update to jDrupal rc3.
Fix machine name of node type being displayed on node add page instead of human name
Merge pull request #271 from GabrielleV/7.x-1.x-alpha

Fix machine name of node type being displayed on node add page instead of human name.
#223. Add theme_number(). Change _drupalgap_form_render_element() to extend the item's attributes onto the variable's attributes after hook_field_widget_form() has been invoked.
#223. Add prefix and suffix support to number_field_formatter_view(). Add number_field_widget_form().
Update binary.
Fixed #275. Change drupalgap_entity_build_from_form_state() to only ignore undefined values, not empty values.
Update binary.
Fix #278. Change theme_views_view() to support pager_pos variable.  Add theme_views_spacer() and change theme_views_view() to use it.
Update binary.
Merge remote-tracking branch 'remotes/origin-original/7.x-1.x' into 7.x-1.x-alpha-offline