shared_lib test required folders created in Makefiles
Filename visible when using filter option

Seperates root and filter options so that both can be used at same time.

Solves issue #6 (trac ticket 3925)
Added support for multiple filter options

Solves issue #4 (trac ticket 3952)
Merge pull request #14 from robberos/master

patches for issue #4 & issue #6