Clean now eliminates all xpi files and all editor temporary fall back files.
 On branch master
 Changes to be committed:

	modified:   clean.sh
build.sh now creates an 'xpi' file  with a version name and ensures that no editor cruft gets into the build.
 On branch master
 Your branch is ahead of 'origin/master' by 1 commit.

 Changes to be committed:

	modified:   build.sh
Renamed 'xpi' to reflect it's origin and version.
 Your branch is ahead of 'origin/master' by 2 commits.

 Changes to be committed:

	renamed:    SELBlocks.xpi -> sel-blocks_1.3.1a@chris.noe.xpi