lua51-5.1.5-160000.3.2

- Use FAT LTO objects in order to provide proper static library.

- Provide symbol for pkgconfig

- Add INSTALL_LMOD and INSTALL_CMOD variables to lua51.pc: this is
  queried for example by rrdtool's buildsystem.

- Properly set includedir in the .pc file

- Remove lua macros to favor split package
- Sync with lua53 package to have exactly same approach of deployment
- Add patch fixing the build using libtool:
  * lua-build-system.patch
- Remove patches that are obsolete by above:
  * lua51-5.1.5-libdir.diff
  * lua51-5.1.5-module-path.diff
  * lua51-5.1.5-pkgconfig.patch
  * lua51-5.1.5-shared.diff

- provides Lua(API) and Lua(devel)
- adjust update-alternative weight
- macros installs to -devel

- Update RPM group classification

- fix update-alternatives

- fix /etc/rpm/macros.lua51 perms

- Added a softlink to retain compatibility with .so naming from
  the DEB world which is the quasi standard in gaming nowadays.