bump version to 0.3

put copyright statements into the source code

change my name

document the {add|copy|show} [-Nn] flags

document the GPM_<COMMAND> env variables

implement the -Nn flags for add, show and copy

fix fork() code

fix style

fix usage text for gpm copy

pass subcommand arguments via environment variables

amend style

amend mailmap

handle files and recipients with shell metacharacters

add the igpm example

document dependencies

document the copy command

allow copying without deleting

add options flags for the copy subcommand

correctly set variables in add()

undefine secret variables as soon as possible

don't die before resetting stty

add the copy command

add GPM_GPG to the man page

bump version to 0.2

add mailmap