make fails with syntax error

Hello Benoit,

the attempt to ```make``` erica from a fresh cloned erica copy fails with:

```
src/couchbeam_util.erl:126: syntax error before: '/'
src/couchbeam_util.erl:130: syntax error before: '/'
Makefile:17: recipe for target 'compile' failed
```

This problem can be solved by checking out the couchbeam ```master``` branch:

```
$ cd deps/couchbeam
$ git checkout master
```
HTH
Regards
Thomas

Start at Makefile:17 and the dependency under deps/couchbeam; reproduce the failure with a fresh clone and inspect which couchbeam branch is checked out. Compare it with the couchbeam master checkout described in the report, then verify that a fresh `make` completes without the manual checkout.

Written by the indexing model from the issue text.