~ecs/wersh

Miscellaneous fixes
Don't emit extra newline at start
Quote more variables

Also add -u
example: s/function //
Misc updates

s/    /^I/g

render: s/cat -/cat/

LICENSE: update
Fix bashisms

Tested under mrsh
Add wersh-watch
Misc bugfixes
Add Makefile
Remove -w from readme
Make wersh more POSIXly correct, use *.w
Fix error in CSS
Add syntax for improved wersh scripts
Initial commit