Merge pull request #67 from avsm/master

In the front page, the summary contains the entire OPAM description
Fix the return code of `ocamlc{.opt} -where`
Merge pull request #69 from samoht/master

Fix the return code of `ocamlc{.opt} -where`
Fix #68
Add Travis CI files
Merge branch 'master' of https://github.com/ocamllabs/opam-doc
Update the scripts to use a local installation of OPAM
Rename the opam-doc binary into opam-doc-index

The goal is to have a self-contained `opam-doc PKG1 .... PKGn` command which calls all the right scripts
Update Makefile

- remove all the scripty hack
- install all the scripts at the right place
Remove unecessary files
Update .gitignore
Update README
Remove unused variable in Makefile
Add an ending newline
Use Travis only with ocaml 4.01
install and try to run opam-doc in Travis CI scripts
/bin/sh do not recognize 'function'
Do not use `builtin` in shell scripts
Merge pull request #70 from samoht/master

Fix #68
Add a dirty trick to not start the documentation server when Travis is running