added carrierwave to support uploads
added FilelessIO (will be used in uploaders)
renamed initializer
whitespace and ignoring uploads
added EmisorImagenUploader and renamed Emisor#logo to Emisor#imagen
added Emisor::Single (singleton module)
added Emisor::ImagenUploadable
EmisorSerializer now serialises ruc (bugfix) and imagen_url
inflecting plural of "emisor" and added imagenUrl to Bandango.Emisor
added Api::EmisoresController

I forgot to commit schema
added Bandango.ImagenUploaderPreview and Bandango.ImagenUploaderView
added Emisor::Cacheable and using `cached_emisor` on Api::EmisoresController
supporting client-side /preferencias
validating Emisor#ruc
renamed Emisor#obligado_a_llevar_contabilidad to Emisor#obligado_llevar_contabilidad
added `.has_padding` to presets
updated views of /preferencias
Merge branch 'with_uploads'
Merge branch 'master' of https://github.com/vilcabamba/bandango