added query_presenter
adding rake task to upgrade old settings
some fixes to tests, query presenter and blocks views
added tests for query_presenter
extract checking redmine version to query_block_partial_name method
allows detect query with string id
added limit to QueryPresenter
allows to update a query's limits
returns partial with query_block when update query
fixed user tests
added limit links
allowed to switch between full and compact view
fixed default sorting; fixes #4