Updated Russian translation
Updated Greek translation
provide settings icon for HC

https://bugzilla.gnome.org/show_bug.cgi?id=708311
symbolic: provide expanders as icons

https://bugzilla.gnome.org/show_bug.cgi?id=729565
More contrast for the folders

https://bugzilla.gnome.org/show_bug.cgi?id=729656
Updated Spanish translation
provide rtl and ltr variants of pan icons

- use symbolic links instead of SVG clones because of the
  suffix logic (-rtl|-ltr is at the end)

https://bugzilla.gnome.org/show_bug.cgi?id=729999
update spinner design

- fix cursor generation scrips to work
- render new wait cursor using the updated design
- remove old process-working multiframe icon from hicolor
- provide a single frame icon for process-working
the spinner cannot be done as a stencil, due to reliance on gradients

- as colors are overriden, gradients aren't possible with stencils.