Fix issue #215, amend User-Agent string so that Google Servlet Engine (GSE) on which Blogspot is built will honour the gzip compression Accept-Encoding setting. This improves response times when refreshing many feeds on lossy or high latency networks
Update autorevision to 1.6.
Merge pull request #226 from Echelon9/fix-issue-215

Fix issue #215
Merge pull request #228 from dak180/topic/build-system

Update autorevision to 1.6.