Reverting commit f7633ba as it has broken CMSIS-DAP debugging.
Remove semihosting as being enabled by default. Update to mass erase for Kinetis devices. Single startup file for all K20DX128 builds. Project file changes to output dir and may break concatenate.py
Merge pull request #34 from sg-/master

Remove semihosting as being enabled by default. Update to mass erase for...
Changes after a merge with the upstream