change the docs links to MAM
Added port information
Merge branch 'rc4' of github.com:WSO2Mobile/mobilepublisher into rc4

Conflicts:
	config/mam-config.json.temp
fixed issue with re upload app
Merge branch 'rc4' of github.com:WSO2Mobile/mobilepublisher into rc4
changes to reupload app
fixed the bug with file upload twice