Add info about fixed contexts.
Add two fixed contexts streamsx.inet.dojo that maps to
$STREAMS_INSTALL/ext/dojo, and streamsx.inet.resources that provides
useful resources from the streamsx.inet toolkit.

Add a viewall.html that provides auto live tables for any stream exposed
by HTTPTupleView.
Make Java classes Java 6 compatible
Add formatter for int64 time attributes.
Add support in HTTPGetXMLContent for updating the URL based upon the
returned content.
Make Java classes Java 6 compatible
Merge pull request #53 from ddebrunner/master

Fixes issue #50, #51