HTTPCLIENT-1532: use Base64#NO_WRAP mode for Base64 encoding

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient-android/trunk@1617212 13f79535-47bb-0310-9956-ffa450edef68
HTTPCLIENT-1502: fixed source jar qualifier ('sources' instead of 'source')

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient-android/trunk@1617213 13f79535-47bb-0310-9956-ffa450edef68