Problem with readdir on < perl5.12 or maybe with oSX
Merge pull request #12 from bestscarper/master

Problem with readdir on < perl5.12 or maybe with oSX
up-to-date moarvm doesn't need --enable-jit
Allow "build panda" as alias for "build-panda".
Add experimental "triple" command.
Try to install things in the correct place.
Merge pull request #13 from timo/patch-3

up-to-date moarvm doesn't need --enable-jit
Get rid of moar_jit, advertise 'build all' in README
You can't 'switch all', remove that from help
Make it work with custom install locations; closes #10
Allow setting custom path to git in GIT_BINARY
Unify a list of available backends
Adjust phrasing in 'switch' sub-command

'switch' jumps between existing builds (some backends of certain
versions), or things previously built via 'build' command.
Fix warns and suggest options when 'build' run w/o arguments

It used to shit warnings:

    $ rakudobrew build
    Use of uninitialized value $impl in string eq at /home/mvuets/.rakudobrew/bin/rakudobrew line 44.
    Use of uninitialized value $impl in string eq at /home/mvuets/.rakudobrew/bin/rakudobrew line 105.
    Use of uninitialized value $impl in exists at /home/mvuets/.rakudobrew/bin/rakudobrew line 109.
    Use of uninitialized value $impl in concatenation (.) or string at /home/mvuets/.rakudobrew/bin/rakudobrew line 110.
    Building  is NYI. Well volunteered!

Now it's more polite:

    $ rakudobrew build
    Build what?
    Available backends:
    parrot
    jvm
    moar
Add new sum-command 'available'

'available' lists options available to 'build'. For now it's only
backends. Coming soon: Rakudo versions.
Make 'available' list top-15 Rakudo versions

Naïve and dumb, but good enough for the first iteration.
BEWARE GitHub rate limits applied to unauthenticated API calls.
Tell users they can specify which Rakudo version to build

I peeked this undocumented feature from tadzik's Perl 6 Advent Calendar
2014 post. (Which is not published yet, hence cannot provide a link to
the future.)
Expose 'triple' to users and set defaults

Huh, one more hidden gem (-:
Add 'self-upgrade' sub-command

Since the way to install rakudobrew is to clone its git repo,
self-upgrade is as simple as pulling that repo.
Add explicit exit()

So, you know, it's clear you ain't gonna do anything anymore.