* added example project app17a
* renamed folder app17a to Chapter-17-Progress-Meters
got app17a to work
* added example project app18a
* renamed folder app18a to Chapter-18-Customer-Interceptors
* got app18a  to work
* added missing SQL script to build and populate products table

Note: This example was run under Tomcat 6, whereas the previous examples had been run under Glassfish 4.
* added example project app19a
* renamed folder app19a to Chapter-19-Custom-Result-Types
Got app19a to work

Note: You'll need to add brainycaptcha.jar and captchaplugin.jar to the build path.
Both of these jars are located in the /WebContent/WEB-INF/lib/ folder
* added example project app26a
* renamed folder app26a to Configuration-by-Annotations
got app26a to work