Replace Cake with Gulp as workflow task manager
- Delete Cakefile, buld.js, agentscript.coffee (no longer needed, whew)
- Docs: agentscript set of 7 files no longer has dropdown, gulp-docco issue
- lib/: removed sourcemaps for coffee, possible gulp-coffee issue
- Add Gulpfile, update package.json, adding npm run commands
- Template: breakout coffe port to simplify docs