Removed obsolete batch files
Update readme
Use modern .tid format for test data

The new build tools don't even understand the old `.tiddler` file format
Adjust tests to use `jQuery` instead of `$`
Merge pull request #120 from ericshulman/master

update version/date for TW271 release
Merge pull request #119 from Jermolene/master

Clean up obsolete build scripts and make the tests work again