Update settings.h

Remove old setting definition
Update LICENSE.md
Update LICENSE.md
Update Makefile
Update README.md
Update README.md
Update LICENSE.md
Update LICENSE.md
Update README.md
Update README.md
Fix the type of DMA driver members in serial clsdrv

Added the forgotten & from the member type
Update README.md
Update README.md
Fix SDRAM calculator to work with the old Aery32 board revision
Some Makefile polishing
AT32UC3A has SRAM, not SDRAM
Reformat SRAM usage message
Fix awk magic in SRAM calculator
Be specific with percent sign in awk in DOS/Win

The percent sign (%) is used to mark DOS/Win environment variables, so it
must be doubled (%%) to yield a single percent sign visible to awk.
Fix Makefile to not escape SETTINGS path in Linux

Fixes an issue where the project doesn't build when installed in folder including space (in Linux). GCC -include doesn't want/need paths to be escaped from spaces.