added subdomain to account params ddef
root_url(:subdomain => account.subdomain)
domain: example.com
subdomain
added subdomain uniqueness spec
changed Account.create to new
validates subdomain uniqueness and rpesence  => true
dynamic_form gem
require dynamic_form
added error messages account#new
subdomain
isubdomain with restricted name
subdomain exclusion
added guard jems for testing
subdomain
fixed typos
account helpers
factory girl gem
guard bundler
account factory