remove widget gallery from seed
adds recursive association in pages
adds significant signature
se adapto todo a la nueva relacion de paginas

se modifico el seed
se cambiaron scopes de menu
se agrego animacion
fix index menu backend
add link edit user header
fix new user backend
fix menu backend edit for new models

add render menu bottom
fixes broken gallery styles
Merge branch 'dev' of github.com:farfanoide/agalma into dev
add pages links and galleries to seed
minor fix on footer style
fixes bottom-right-menu style
adds sortable pages to menu form
agrega filtros y opciones al sort de menu
arregla quilombo del merge
updates backend