One more fix to task filters (#1196)

Reverted most of the previous changes to the tasks filters.  Changed
the links for member assignments, Your tasks, and All available
tasks to include proj=any and lang=all in the GET params
add some selenium tests for task filters
Switch get param to be project always (#1196)
tests change proj to project.
Merge pull request #1200 from pculture/gh-1196

Gh 1196