Adding new hourly/daily models

Table names are singular so specifying table name explicitly.
Merge branch 'master' into add-newgeomodels
fixing support for from_class
adding support finding model by slug
adding start date & end date scopes
adding new concerns handler for new derived models
adding concerns to new derived models
setup to use new data value factory

Also updated the start and end date searching
changing derived variables in api for the map form

These now generate a hash with hourly and daily values and the pretty
names with slugs
delete unused models and routes
Updating relationships for daily/hourly products.
Destroying daily_*datavalue models; replaced with daily_* models
Updating cache
Merge pull request #16 from gina-alaska/add-newgeomodels

Adding new hourly/daily models