Added the ability to get at the config.xml from a job
Added the ability to get at the config.xml from a job

Jobs expose their configuration through an xml file which can be retrieved through the api.
Right now this method returns the raw xml as \n terminated strings.

This may change in the future to support more useful xml based structures

EwoutVDC/jenkinsapi,zaro0508/jenkinsapi,salimfadhley/jenkinsapi,domenkozar/jenkinsapi,JohnLZeller/jenkinsapi,zaro0508/jenkinsapi,jduan/jenkinsapi,ramonvanalteren/jenkinsapi,zaro0508/jenkinsapi,mistermocha/jenkinsapi,domenkozar/jenkinsapi,imsardine/jenkinsapi,mistermocha/jenkinsapi,aerickson/jenkinsapi,aerickson/jenkinsapi,imsardine/jenkinsapi,JohnLZeller/jenkinsapi,jduan/jenkinsapi,salimfadhley/jenkinsapi,imsardine/jenkinsapi,mistermocha/jenkinsapi,JohnLZeller/jenkinsapi