Merge pull request #34 from JeanFrancoisViaud/master

Rule.java
Separate UML from code
Merge pull request #35 from chdemko/master

Separate UML from code
Add uml description for Rule
Merge branch 'master' of github.com:kbertet/java-lattices
Merge pull request #36 from chdemko/master

Add uml description for Rule
Change method category
Merge pull request #37 from chdemko/master

Change method category
Move cite.bib to doc folder
Merge pull request #38 from chdemko/master

Move cite.bib to doc folder
Reorganize uml
Merge pull request #39 from chdemko/master

Reorganize uml
Checkstyle, uml and test on ComparableSet
Merge pull request #40 from chdemko/master

Checkstyle, uml and test on ComparableSet
Update initiate-publish.sh
Check Style for Concept.java
Add unit tests for Concept.java (not 100%)
Update build.xml
Update ChangeLog