Release v0.2.1

• Upgrade from v0.2.0
• Tweaks to documentation
• Adding build-setup.sh to copy into projects
• Moved scripts into install (for installing components during pipeline) and pipeline for more complex pipeline steps used in other steps. bin/build scripts are largely tools
• Renamed colors.sh to tools.sh
• Added env``map.sh and cannon.sh tools and defined new quoteSedString function, related to both.

To fix (some) local code, run:

bin/build/cannon.sh colors.sh tools.sh

other tool paths can be updated manually.