Working issue solution to #9 for GET queries
Added a client-side caching flag to the tei-numbers request in the demo

- relates to issue #9
- changed the servlet URIs to point to the server root
Added some headers to the TODO file
Transitioned to google app engine

- Changed directory layout, adjusted dependencies versions in pom.xml,
  changed package names, and used a more consistent naming scheme for
  servlets and their URIs
- Added an HTML doctype to tei-html as we transition away from strict
  XHTML
Made calls to the server relative rather than absolute URIs
Updated TODO
Updated documentation about adding stylesheets
Added javadoc documentation generating files
Adding xalan dependency

- Google AppEngine apparently doesn't have the javax.xml.* extensions
Adding a check for missing text parameter in XSLTTransformer
Added documentation to some transformations and to Transform
Corrected package names for tests
Improved note html by adding the note's type to the 'sidebar'
Adding a file that came from the google appengine skeleton project
Added events to each line of a citation

- reorganized tei-html.xslt
Fixed multiline highlight (closes #7)
Adding information for testing server performance
Adding a schema for our concordance table format
Adding the schema for supported TEI analysis
Disabled HTTP caching on the client side