Add -q, --quiet flag for some operations.

This adds a quiet flag (and setting) for some operations, namely AUR
search and view dependencies. This is useful when parsing Aura's output
in scripts since it outputs only package names, stripped of colour. The
same setting could be used for new features in the future, if need
arises.
`-C` is now more lenient about installation from the cache

- It will now allow packages to be installed from the cache, even if they
  aren't installed currently.
Merge pull request #86 from dkasak/quiet-flag

Add -q, --quiet flag for some operations.
Minor style changes
Added Denis to the man page
Fix man page formatting
Merge pull request #99 from dkasak/patch-1

Fix man page formatting
Dependency checking is now much faster - fixes #100

- Made dependency checking tail recursive. When getting the deps from a new
  PKGBUILD, it checks if it has already recursed on those to eliminate
  duplicating work.
Can now pass `-c` twice to `-C` to remove only unsaved packages - closes #94

- A `saved` package would be one recorded with `-B`.
- This option allows one to quickly remove any files in their cache
  that they don't need.
Version bump - 1.2.0.0
Update German translation
Added Applicative instance for Aura Monad
Merge pull request #103 from FliPPeh/master

Improved German translations
Merge branch 'master' of github.com:fosskers/aura
`makepkg` is now called as `/usr/bin/makepkg`
Dependency checking now implemented as a graph - fixes #108

- Must faster now. And proper pkg order!
Version bump - 1.2.0.1
Removed debugging output
Fixed bug where deps wouldn't be installed with `--asdeps`
Fixed apocalyptic bug - fixes #109

- At least, I hope it does.