Add project list filter for easy finding projects
Move ProjectListFilter::FilterOption into private section
Use toolbutton for clear search term
Forgot to add SceneTreeDock::set_selected change in last PR
Adding travis ci support
Merge pull request #566 from marynate/PR-fix-scene-tree-dock-set-selected

Forgot to add SceneTreeDock::set_selected change in last PR
Merge pull request #568 from marynate/PR-travis-ci

Adding travis ci support
Merge pull request #504 from marynate/PR-pm-filter

Add project list filter for easy finding projects