Reactor #74 implemented using Java NIO framework.

Work on #74, removed author name from all classes. [ci skip]. Author names were added due to default eclipse configuration.

Work on #74, updated javadocs, reformatted code to google style guide, added missing final modifiers

PR for Document design principles #208

Add checkstyle into maven #224 

# Conflicts:
#	pom.xml

Work on #184, changed category, added difficulty tag, more real applications and credits, added implementation approaches

git config must either be global or inside a repo.
I moved the lines for initialization of git to only apply to the ghpagesclone.

#184 Fluent Interface pattern