Merge pull request #31 from Somasis/ng

Exherbo Linux support (Paludis package manager)
lib/cave: minor change to coding style. Add FIXMEs
lib/dpkg: add FIXME
README: Add #cave (Exherbo Linux) support, by Somasis
Clean up and update list of Authors and copyright information

* Rename (lib/help.sh) -> (lib/help.txt). The compile script knows this
* Remove THANKS. All contributors are not listed in AUTHORS section
* Update copyright information in the compiled version of the script
lib/cave: simplify an #echo statement
lib/*: add _*_init methods for all package managers

The function, for example, _dpkg_init will be invoked to set up
some special things for the main operation
lib/00_core: a work-around to print copyright information
Homebrew: fix `ng` support

This week I decided to try out the `ng` branch of pacapt, but noticed nothing
seemed to work with homebrew:

    [$]> ./compile.sh > pacapt.dev && ./pacapt.dev -Ss foo
    pacapt version 'a411f26' has been generated
    homebrew: 'S:s:' operation is invalid or not implemented.

A little bit of investigation showed it was due to a typo in the name
'homebrew', causing none of the defined functions to match the grep and end up
in `_validate_operation()`'s list.

With this patch, everything operates as expected:

    [$]> ./compile.sh > pacapt.dev && ./pacapt.dev -Ss foo
    pacapt version 'a411f26' has been generated
    No formula found for "foo".
    Searching pull requests...
    Closed pull requests:
    Blacklist foo to prevent terrible bug reports (https://github.com/Homebrew/homebrew/pull/18002)
Merge pull request #32 from xiongchiamiov/homebrew--fix-support-on-ng

Homebrew: fix `ng` support
compile.sh: make list of authors beautiful
lib/cave: remove unnecessary #while
pacapt: re-generated, VERSION=2.0.0-delta

Important changes: fix #homebrew support (#32), #cave support (#31)
Fix invokation to _die
Merge pull request #33 from darnir/ng

Fix invokation to _die
New contributor: Darshit Shah
pacapt: re-generated, VERSION=2.0.0-epsilon
lib/help.txt: update list of authors