#105: add new configuration to accept or to exclue some blocks
 #105: make BlockManager deal with new configuration
 #105: init the block configuration
 #105: remove some useless things in configuration
 #105: some corrections

 * exception will be now launch on manager when accepted AND excluded lists are present
 * remove type dependency for now (everything is global)=
 * phpdoc + code style
 #105: change baz/bar keys by more real name
 #105: use array_diff and array_intersect functions
Merge pull request #111 from MatCottet/issue105_filter_blocks

Issue105 filter blocks