Make Split View Panes Resizable
Merge pull request #9072 from adobe/jeff/sv-resizing

Make Split View Panes Resizable
Nit: change case in function name.
Merge pull request #9081 from busykai/kai/nit-function-name

Nit: change case in function name.
Implement Pane Headers
less and scss unit tests
Merge pull request #9083 from adobe/rlim/less-and-scss-tests-squashed

less and scss unit tests
Merge pull request #9082 from adobe/randy/sv-pane-header

Implement Pane Headers
Merge branch 'master' into jeff/fix-9067
86 the triangle