v1.1
- Extracts from www.lua.org/ftp information about all available Lua versions
- Caches tabular file with all available Lua versions to be processed by awk
- Checks for MD5 and SHA1 summations of tar.gz files
- Added "info" command for displaying index
- Added "update" command for updating index
- Added "rm" command for removing Lua versions
- Removed usage of the "readlink" command for portability