Change: use go.rice for finding source templates
Change: on error exit with status code 1
Change: update Makefile to use go.rice
Update: add compiled templates file to .gitignore
Fix: proper go.rice install path in makefile
Update: simplify makefile
Fix: force rebuilding alpaca with `make install`

When templates are builded and `go install` is runned Go generate
alpaca.a file with embedded templates, but when we run `make clean`
and simple `go install` alpaca.a won't be updated and still will
contain embedded templates
Merge pull request #22 from matrixik/master

Use go.rice for templates embedding