envstore

The program was rewritten in Perl. A script was added for executing a command under the environment saved with envstore.

This release adds some security measures to prevent other users from tampering with your store file or placing a store file to be read by you. It also adds Zsh completion.

This release adds a better usage statement and a nicer way to set variables directly, instead of setting and exporting them from the shell first. It also adds some unit tests.