allow flash messages to be permanent
when a query cannot be loaded, let angular display an error message
add 'show' action to QueryPolicy
return a 404 when accessing a not-viewable query via the experimental API
simplify index action on exp.api work_packages_controller
Show unsupported browser notice for Firefox 10-30

We only support Firefox >= 31 (latest ESR) now. As we previously
supported older Firefox versions, especially 24, we show an
unsupported browser notice for them now.
add experimental-api query permission specs
add specs for QueryPolicy:show
no need to check for performed? in exp.api wp-controller
Allow to set link bg and font color
Allow to set font color for filtered entries
Rename CSS class for selected queries
Fix tests depending on CSS class 'first'
Move 'click' event to list entry element
fix query_loading spec
Merge pull request #2039 from opf/fix/mark_firefox_older_than_31_as_unsupported

Show unsupported browser notice for Firefox 10-30
Improve CSS for query menu selection
Fix selection link color
Set filter style on hover correctly
Merge pull request #2043 from opf/fix/16762_column_context_menu_entries_are_only_selectable_via_link

16762 Column context menu entries are only selectable via link