Basic difference is that all the data stored in the JCR are known as 'Node Store' while the resources stored in cloud or file systems are called as 'Data Store'. Refer [1] to know more details on the same [1] http://docs.adobe.com/docs/en/aem/6-0/deploy/upgrade/data-store-config.htmlYou can achieve ...
Ex: For Jquery 1.7.2 , if you goto http://mvnrepository.com/artifact/com.efsavage.jquery/jquery-maven/1.7.2it list all the dependency package/bundle as well and in this case it is 'javax.servlet-api'
Refer [1] for the different letters you can use to get the respective format. I think you are using 'Y' now and hence your output is in the respective format.ex: you should use 'ago' as the keyword for 1 day ago [1] http://wem.help.adobe.com/enterprise/en_US/10-0/wem/javadoc/index.html?com/day/cq/co...
There is no actual discovery document from Adobe as its a general phase of any project. Experience would help and also you can google around the same for some idea