Moved RM tool definition into OS specific makefile, and move tool
definitions into tools.mk
Merge pull request #854 from jan76/makefile_cleanup01

Moved tool definitions to more appropriate location
1) Fixed text alignment issue and 2) fixed minor typo.
Merge pull request #941 from metropt/align_autotune_values

align values at measured properties groupbox
Add style sheet for inverted horizontal sliders.
Refactored input and output channel reversing. This involved
simplifying the code, as well as removing checkboxes and
replacing with less ambiguous visual clues.
Remove unused reverse button.
Added swap icon.
Added reverse icon button.
WIP: created trianglular grooves.