Corrigido erro de não fazer o embed do manifest em dlls compiladas pelo Visual Studio 2008 no caso de a dll fazer parte de um módulo (estar em um subdiretório). O LuaRocks não fazia corretamente o build de módulo que tivessem estrutura de diretório (como luasql.postgres).
Add a configuration option to specify manually installed rocks.

The patch adds a new configuration option - cfg.rocks_provided.
This option contains a list of packages that are either builtin or
manually installed outside of LuaRocks package management system:

    rocks_provided = {
      [module_name] = module_version.."-"..rockspec_version,
      -- ...
    }

These settings are taken into account during dependency resolution
and when search and install commands are used. An attempt to install
a rock from the list causes an error.

LuaRocks automatically adds following modules to the list:

    rocks_provided = {
       lua = lua_version.."-1",

       -- For Lua 5.2 or later:
       bit32 = lua_version.."-1",

       -- For LuaJIT:
       luajit = lj_version.."-1",
       jit = lj_version.."-1",
       ffi = lj_version.."-1",
       bit = lj_version.."-1",
       luabitop = lj_version.."-1"
    }

where lua_version extracted from _VERSION (e.g. 5.2),
      lj_version extracted from jit.version (e.g. 2.0.2).

Built-in values can be overridden by configuration options.

Closes #177.
Fixed the error of not embedding the manifest in DLLs compiled by Visual Studio 2008 in the case where the DLL is part of a module (inside a subdirectory). LusRocks was not correctly building modules with directory structure (like luasql.postgres) when compiling for win32.
Merge branch 'master' of https://github.com/echiesse/luarocks
1. bug fix for installing on x64 systems in "program files (x86)" (parentheses around x86 gave some escaping problems)
2. Adds named trees created by windows installer in the config file.
Merge pull request #204 from Tieske/win_named_tree

Win installer bugfix and update
Merge pull request #188 from echiesse/master

 Fixed the error of not embedding the manifest in DLLs compiled by Visual Studio 2008…
Merge pull request #194 from rtsisyk/gh-177-option-for-builtin-packages

Add a configuration option to specify manually installed rocks (#177)
Let's be more conservative about this for now.
Use same loop for both arrays
Let's not use "built-in" terminology in this case: avoid confusion with the "builtin" build mode.
Fix regressions caused by #194. Thank you, integrated testing!
Merge branch 'master' into luarocks-doc
Don't quote URL on Windows. Doesn't seem to work:
https://twitter.com/pchapuis/status/414119212739604480