Update build properties

- add authors and links to github repo + website
- let's start with version 0.0.1 (0)
Automatically generate gh-pages

Modify the build process, so that generated web pages get copied
to a dedicated directory.

The idea is to have a seperate local directory / repo for the gh-pages
branch, so we can quickly update the github project website
Fix url bug in build.properties
Update README.md

- links to processing + tool website + tool template
- development status
- license info
improve build process and custom source structure

- create missing placeholders in build.xml
- create placeholder to insert license info as a multiline comment
- seprate license.txt and authors.txt
- custom package structure: bitcraftlab.blocks.tool
Update README.md

fix link to processing tool template