Add eclipse project to .gitignore
add IntegerSet, a class used for tracking sequences
add first iteration of ComModule and OrderingModule
implement reliable multicast as well as abstract superclass
Rename and restructure the communication module

Moved reliable communication logic into recv method
as well as changed error handling into callbacks
Cleanup
Moved trait into correct module
Minor indenting
Fix misspelling
Add shared case classes
Added JoinGrup case class
Move and rename Host to Node
Add logging dependencies and one trace
Fix mistake in log naming
Wrap send in synchronized
Add updateView to implemented ordering
Changed insert to deliver
Add test for ordering module
Add logback xml
Merge branch 'OrderingModules'