Add cookbook for java.
Ignore cache.
Add gitkeep for java recipe.
Add cdh cookbook.
Use relative path of home directory (only knife setting. It seems that chef-solo setting can't accept relative path...).
Add hdfs cookbook.
Add mapreduce cookbook.
Use here document for command.
Add pig cookbook.
Remove needless notifiers.
Fix action triggered notification.
Add sampleuser cache in staging directory.
Add os_base cookbook.
Add -y option(yum).
Add hostname command.
Add setting for knife-solo.