Clean up code samples to remove HTTP from XML and JSON files

Put HTTP calls into *.txt files
Updated calls in WADLs to call both the *.txt and *.xml and *.json files
Updated titles to sentence-style capitalization
Updated <doc> to <wadl:doc... due to strange formatting on api ref page
made sure all methods had short descriptions with consistent language
reverted to 1.13.0 in pom.xml because later versions aren't working correctly

author: diane fleming