More fix

Add make dependency to PKGBUILD (#38)

Fixed 'git add' command used in CI deployments to MPR

Added 'postinst' script

Also configured CI to purge the MPR package's repositories and fill it with the files in 'makedeb/' on each deployment.

Fixed Bash completions

- Added missing arguments for commands.
- Simplified into nested case statement.

Various changes

- Simplified config file.
- Redid internal code for getting config file values.
- Removed 'autoremove' command in favor of '--autoremove' flag for 'remove' command.
- Added code to ensure options for commands in '--help' output are alphabetically sorted (this was already done manually before, but this should help a bit more in the future.
- Fixed bug where '-mi' wouldn't show installed MPR packages.
- Added text to inform user if updates are available after running 'sudo tap update'.
- Added custom error messages when unknown and keyboard interrupt errors occur.

Closes #32 and #25.

Fixed Black and Flake8 violations

Fixed bad exceptions being raised in 'list' and 'search' commands

Tap previously didn't handle unconfigured packages that don't have any version available other than the one that's deconfigured, in which case a candidate version cannot be found, thus returning 'None' from 'depcache.get_candidate_ver()'.

Also fixed message API usage in 'tap/root_check.py'.

Closes #26.

Various fixes

- Fixed issue with only package names showing in output of 'search' and 'list' commands.

- Fixed KeyError exceptions being thrown in 'search' and 'key' commands.

- Removed 'from_mpr' function in favor of direct access to list of installed packages.

Fixed issue with packages not available for the system's architecture…

… appearing in search results; Improved speed of 'search' and 'list'