Modification of the copying permission statement.
Creation of AUTHORS file.
Removing of the authors list from the README.md file.
Minor reformatting

* Fix whitespace: no trailing ws, no mix of tabs and spaces.
* Fixed some comments
Add reference to Rosetta Code in test_nqueens.f
Merge https://github.com/M2IHP13-commiters/JonesForth-arm

Conflicts:
	jonesforth.S
Remove the term students from AUTHORS

It does not apply to all contributors.
Extend README

* Format in markdown
* Expand the section on building and running
* Fix some typos
Remove release date from README
Remove versioning from README
Merge pull request #15 from pablooliveira/master

Minor code reformatting + Extended README