Merge pull request #10 from niksu/master

fixed warning 31: moana.ml was being linked twice
Added a copy right statement
Fixed the add function to work properly
Added Test 11 to test the add function and also the to_list function
* Added a function to join list of AMs
* added eval `opam config -env` to the build.sh
* Cleaned the code a bit; removed unneccessary brackets
* removed main.ml from the script
* Removed main.ml
* cleaned the coded a bit
fixed: incorrect argument was being given to opam config;