Small icons for dialog browse, refresh, and row operations.
Icons in B&W so they don't over-emphasize with respect to other
controls in the dialog.
Layout cleanup for consistency. Removal of the blank space to
left of the fields list in the Global Fields Editor, and addition
of column-sizing-to-list-width.
More even spacing for buttons in html report panel.
Honor platform conventions for action button order and layout.
Move netlist importer to update-pcb-from-schematic algorithm
(display messages and then update instead of "dry run" checkbox)
(cherry picked from commit b21e19d)
Major cleanup of many icons (started as a simple effort to tweak libedit and modedit icons)
Ref: https://lists.launchpad.net/kicad-developers/msg32860.html
* Each application icon has been updated
* Consolidated icon "modifiers" across many icons
* Replaced confusing arrows with "load" and "save" icons
* Slight code updates to reference correct icons
* Consolidate multiple representations of single icon type(s)