Modified pom.xml for asakusa 0.5.0 release (issue-#277).
Modified pom.xml for asakusa 0.5.0 release (issue-#278).
Fixed bugs on issue-#277.
Merge remote-tracking branch 'central/0.5-develop' into 0.5-release

Conflicts:
	example-tutorial-stub/pom.xml
Bumped version number to 0.5.0-RC3