Squashed commit of the following:

commit 218ce72f4edec35ffe20ed2b7dba5b7dc6573a89
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Fri Jul 26 13:46:13 2013 +0900

    upgrade commons-logging from 1.1.1. to 1.1.3.

commit 653e84b2efca7a9e85c9a3e9c1ee08ed77cd7028
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Fri Jul 26 13:39:46 2013 +0900

    apply Solr 4.4 settings.

commit c684d0537b648f634e0302ca3fe89a83cf3c1504
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:47:01 2013 +0900

    use .gitkeep

commit c8b6f5d857c2112f41c422255e4502d47fa80d45
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:38:49 2013 +0900

    add logs and work.

commit 9901415f900ad9656ee536a4c25672661e2b0224
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:35:31 2013 +0900

    add src/java/test/resources.

commit dbae473704aca199b69a7bc868771955a95445a0
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:34:53 2013 +0900

    add SolrClient.

commit aaa5e579c80b054850630c49ef949bb9377519d7
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:32:57 2013 +0900

    add binary files.

commit 3189b792777e2bcf15fd728bc0ff1a31df36167f
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:32:24 2013 +0900

    add binary files.

commit 2dd1ddd70d95affc6f36d3e554e8c5f6d8470058
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:30:50 2013 +0900

    add src/bin

commit b10948843279f8102d26cae2ff134545c7f6941c
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:30:28 2013 +0900

    add src/resources.

commit 5eee6a5f738fcb73397cb4ea5c1247ba26510ba6
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:30:00 2013 +0900

    add src/solr

commit b190de84737794b0ab795e1f613ca76e5740756a
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:29:37 2013 +0900

    add src/contexts

commit 64f7da8031f88e20413df67d8289ffb41478470a
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:29:15 2013 +0900

    add src/conf

commit a10a9e234a20cf8f8c5067ab8716c07a45c62f98
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:27:41 2013 +0900

    add old page.

commit 39ccde15002bf5ebb7e3a75d00cdc82da042b9a8
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:26:57 2013 +0900

    add src/java/core

commit 5eaef8d00d30ddfc49ef77983c4d9ee3ca9e74fa
Author: HARUYAMA Seigo <haruyama@unixuser.org>
Date:   Thu Jul 25 18:25:11 2013 +0900

    first commit.
add descriptions.