work towards 1.0 release
more updates for 1.0 release
change deployment config to reflect move to GitHub and add test target
update README.md link
remove PowerPC examples and add ci target for running ci.sh on all platforms

This also reduces the set of examples to one per platform.  SWT 4.3
seems to have broken the paint example (or the paint example was
always broken, and SWT 4.3 just exposed the brokenness), so I dropped
that.  I also dropped the graphics example to reduce the smoke testing
burden.  The control example seems sufficient to demonstrate what
needs demonstrating.