rename index

webworks defaults to index.html in config.xml files, if user does
rename index.htm sample will not load properly.
fixed index name
added .html extension
Merge pull request #221 from ctetreault/master

rename index
Merge pull request #222 from ctetreault/WebWorks-2.0

added .html extension
Payments sample app
Merge pull request #224 from ctetreault/WebWorks-2.0

Payments sample app
Merge remote-tracking branch 'blackberry/WebWorks-2.0'