rewrite gpm completely in perl Aside from the language change, the changelist is pretty large: - Added support for creating directories of arbitrary depth within GPM_DIR - Added support for GPM_GPG environment variable and -g flag - The GPM_RECIPIENT environment variable and -r flag are now optional - Added support for multiline secrets - Added the -m flag for the add command - The add command no longer forces the .gpg suffix - Added support for the GPM_LSCMD environment variable - The rm command now asks before each removal (for forced removal use "cd $GPM_DIR && rm -f $file") - No longer trying to be "clever" about newlines

fix documentation

add documentation