add camltc-0.9.2

I haven't been through the suggested hassle so far, but I did come up with another attempt which I think should satisfy everyones requirements. Can one of you have another look?


Related to the suggestion of adding checksum: that doesn't seem to have any effect when the url points at a github repo. Adding it produces the following output:
```
=-=-= Installing camltc.0.9.2 =-=-=
[NOTE] Skipping checksum for dev package camltc.0.9.2
camltc.0.9.2 Fetching git://github.com/toolslive/camltc#camltc-0.9.2
...
```
Install still succeeds though, so no harm done either.

I chose to specify a specific git commit sha in the git url instead, so that verifies integrity.