Merge pull request #126 from ellisonleao/article_inline_album

Add ArticleSourceInline on AlbumAdmin
Limit recommended articles by range date and ordering fix
Return image dimension in admin
Allow Albums and Videos in related posts
Added Album indexes
Added search templates
pep
Do not repeat current article on "latest news" collection
Template tags takes_context
Added property 'root' to channel to be compatible with key ['root'] of generic view
Sending channel to get_box context, to avoid problem in pages without channels
Multiple Image upload can generate an Album or Post.
Fix slug error
channel object is needed everywhere
Fix error qhen title field is not provided
Allow custom captions for album and post images
add: channel_tags, get-url tag to replace commom url return
Merge pull request #129 from DiegoYungh/new-feature

add: channel_tags, get-url tag to replace commom url return
PEPs
Add missing verbose names / change some translations