listing of units
made units a drop down
made units a drop down in update action
changed market field in create and update views to a dropdown list
changed vendor commodity vendor and commodity fields in create and update views to a dropdown list
created crud for unit model
added unit to index page
corrected listing
modified vendorCommodity to save last updated on create and update scenario
added an api module to be used by android
added market controller to api
added market link to api summary page
added commodity add and update functionality
corrected errors
updated db configuration