disable query cache because we have nearly no benefit with it for ERP5.
use latest version of slapos.recipe.build to cleanup pyc files
version up : Apache httpd 2.4.4, Apache httpd 2.2.24 and apr-util 1.5.1.
version up : lxml 2.3.6.
Merge remote-tracking branch 'origin/erp5' into erp5-component
in erp5-component branch, use erp5-component branches for erp5 and slapos repositories.

This reverts commit 4dba26ff69cb4df6b1094e7572bb05d5bc45cfc6.
update groonga-3.0.1, groonga-normalizer-mysql-1.0.1 and mroonga-3.01.

now utf8_unicode_ci is supported !!!
forgot to specify groonga-normalizer-mysql's pkgconfig location
Merge branch 'erp5-component' into erp5
Revert "in erp5-component branch, use erp5-component branches for erp5 and slapos repositories."

This reverts commit 061a05cda58ecf8862f537c7cbe05e420dbd2da6.