Update Extjs data type mapping.

Signed-off-by: Toha <tohenk@yahoo.com>
Move functions to base class.

Signed-off-by: Toha <tohenk@yahoo.com>
Change JSObject multiline to true as default.

Signed-off-by: Toha <tohenk@yahoo.com>
Add Sencha ExtJS4 formatter.

Merged from pull request #80 by @WitteStier.