Add application/migration-guide for version 0.5.3 (#323).
Bumped up document version to 0.5.3 (#323)
Fixed typo using dumpDifference (#323).
Fixed document typo on maven-archetype (#323).
Add deployment guide for Hadoop2 (#313, #323).
Add documents for using JDK7 (#314, #323).
Add document for #319 (#323).
Fixed document typo (#323)
Add groovydoc to Asakusa Gradle Plugin (#323).
Modified document for #335 (#323).
Merge remote-tracking branch 'private/issue/313' into 0.5-develop
Merge remote-tracking branch 'private/issue/314-M1' into 0.5-develop
Merge remote-tracking branch 'private/issue/319-M1' into 0.5-develop
Merge remote-tracking branch 'private/issue/323' into 0.5-develop

Conflicts:
	docs/ja/source/administration/framework-organizer.rst
Merge remote-tracking branch 'private/issue/335-M1' into 0.5-develop
Revised document index (#323).
Fixed dead link and moved link (#323).
Bumps up default Gradle version (#320).
Revised target platform document (#323).
Add attention using JDK with Eclipse (#314, #323).