Initial POM: build instructions for samples
Initial POM: build instructions for samples

- Use version ranges for PDFJT components. These can be narrowed
  to required ranges in the future.

And also add more complete metadata:

- Fuller description
- URLs
- Licenses
- Developers
- SCM information

Code quality:

- Ensure that code conform to JRE 1.7 using Animal Sniffer
- maven-checkstyle-plugin 2.17
- Use latest Checkstyle, 6.13
- Use updated checkstyle-config, 2.0.0-SNAPSHOT, which turns off
  annoying Javadoc formatting warnings in Eclipse.
- PMD
- FindBugs

datalogics-coreyy/pdf-java-toolkit-samples,datalogics/pdf-java-toolkit-samples,datalogics-coreyy/pdf-java-toolkit-samples,datalogics/pdf-java-toolkit-samples