remove exe wrappers, just batch files on windows
check is_lua by compiling the file
Merge pull request #237 from Tieske/no_exe_wrapper

No exe wrapper on Windows
Revert change that broke rocks.moonscript.org — it would skip servers that have no .zip manifest in them.
Removed some unused variables
Merge pull request #239 from mpeterv/remove_unused_variables

Removed some unused variables
Merge branch 'master' of github.com:keplerproject/luarocks
Fix help, as pointed out by @ignacio
Bring the Unix implementation up to par with the Windows one!
Un-module bundled deps
Split luarocks.path module
In luarocks.utils, require deps only inside functions
Unmoduled CLI-related modules which used some globals
Unmoduled luarocks.util
Fixed strange things in deps modules + fixed a bug with luarocks.fs.lua.get_md5
Unmoduled per-platform fs implementations
Minor consistency improvement in util.lua
Unmoduled core modules with package.loaded trick + fixed locals shadowing module table

Thanks to Metalua for the possibility to automate this.
Removed module calls from installation scripts
Split luarocks.path the library and `luarocks path` the command.
As suggested in #232.