Squashed commit of the following:

commit 044bd656d6c7b810ccfa70411a566601bef4ae62
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 15:03:55 2014 +0900

    remove remotes/origin/

commit 5907bba9738a1dc966819701e1d83ac3a221cd57
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 13:06:29 2014 +0900

    include version string

commit e8ae41ab249d2e827243f7c1cf955af5c9db7b4c
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 13:00:00 2014 +0900

    || true

commit af15d23e1f75b99933e7a7d2cb8afaee45800475
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 12:55:33 2014 +0900

    output tag to file

commit 9d04c44321f4af20dc444695bf799d2369ce5939
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 09:51:34 2014 +0900

    shrink yml

commit d5d8ed4867adb918f0b8f2de9ec3e364dbe13cbb
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 00:59:57 2014 +0900

    no para 1

commit 075ac5bcbdb99ab6fee4b4a7c8757e99e6bdda25
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 00:55:18 2014 +0900

    deploy: create github release

commit 13e047a81bad2d0f94b397e37aa28f968d5e5a15
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 00:48:09 2014 +0900

    use WERCKER_OUTPUT_DIR

commit 9635d33b93b641e827380d4992de791c17e52811
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 00:33:49 2014 +0900

    parallel=1

commit 8da4e1687e1bfbb3fd8e0a5b6e672c0ac28045ca
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 00:23:10 2014 +0900

    no sudo

commit b22a06976993ee80315a7b37ad78bc6bcaaee5ff
Author: motemen <motemen@gmail.com>
Date:   Tue Jun 10 00:19:44 2014 +0900

    update

commit d65675e5af23e8a644cb2e3c9a9695fd37f1132d
Author: motemen <motemen@gmail.com>
Date:   Mon Jun 9 19:34:26 2014 +0900

    sudo...?

commit f888a5d57efe28ce3fdb7fb6dc03f21b3c990c23
Author: motemen <motemen@gmail.com>
Date:   Mon Jun 9 19:31:21 2014 +0900

    cross-build on build phase

commit 47a8b2a90425df884c97648113dce79be12d4eb9
Author: motemen <motemen@gmail.com>
Date:   Mon Jun 9 19:22:41 2014 +0900

    add wercker.yml and test cross-compiling
MIT license
Added changelog for v0.2