Fix UML-105 Remove execution events after delete

After deleting a synchronous/asynchronous message associated to an
operation, the associated execution events should be removed.
Fix UML-105 Add tests on delete service
Fix UML-106 Add property container name as comment

Add a new comment layer in sequence diagram which shows the name of
the instance container. It is useful in case of two lifelines with
same name.
Fix UML-104 Reorder sequence diagram

Review the getReplyMessage method
Fix UML-104 Add Junit test on reorder
Update reorder service to move execution
Update test resource
Fix bug in delete lifeline service

Delete all the elements associated to lifeline, executions and messages
and so behaviors, signals, events, dependencies...
Create information layer and update colors
Merge pull request #23 from mbats/od5

Fix on sequence diagrams
Fix bugs on Composite diagram
Merge pull request #26 from mbats/od5

Update composite diagrams
Fix bugs on composite diagram
Fix bugs on composite diagram
Introduces nested class support in the class diagram
Merge branch 'od5' of github.com:mbats/UML-Modeling into od5
UML-124 : Exception occurs when UML Designer is installed on an Indigo
Eclipse Classic

introduces a dependency to xerces so that we are sure we have a suitable
XML parser in the platform (required for the SVG shapes)
UML-86 : [Licenses] OD Architect Temporary License popup should not appear when launching and using UML Designer

Trying the approach of including the UML licence directly from the UML
plugin.
UML-86 : [Licenses] OD Architect Temporary License popup should not appear when launching and using UML Designer

We don't want to depend on the update-site licence anymore
UML-86 : OD Architect Temporary licence popup

Updates the embedded licence