Updating boilerpipe version to 1.2.0

Updating boilerpipe version to 1.2.0 fixing a parse error when annotating with the annotate API

- Stops the following error from happening when a page cannot be parsed

    "ERROR: No text was specified in the &text parameter."

- Adds a repository to the main pom.xml

- Changes boilerpipe version from 1.1.0 to 1.2.0