Fixed line break issues
Fixed null pointer exceptions
Aligned structure and improved readability
Enhanced docu
Refactored event handling of Layer

- INeighborCallback renamed to LayerObserverCallback
- Helper classes moved to application.util
- Removed unused parameter in Multiplexer
Split Host in Node and FoG-related parts.

All FoG-related parts are now in FoGEntity. Host provides a method for
retrieving the layer entities residing on a node.
- Import bandwidth and delay from given topology file
- Derive link costs from remaining bandwidth
- Minor changes in AutonomousSystem in order to access description of
entity that is about to establish connection
- Maybe problematic: getMax() of DatarateProperty was overriden
Revert "- Minor changes in AutonomousSystem in order to access description of"

This reverts commit d4b327f9458eedb3ddac767f44ff78671733efeb.
Allocation of bandwidth works so far with rerouting.
Merge branch 'master' of https://github.com/ICS-TU-Ilmenau/fog
Fix documentation for hierarchical routing service
Restore default config values
Merge branch 'master' of https://github.com/ICS-TU-Ilmenau/fog.git
Node and FoG entity separated

- Refactoring towards a recursive layer model
- Node is now a collection of layer entities
- FoG entity is most prominent (and default) layer entity
- Host is now an interface (not a class)
- Node implements Host
Separation between graph view and model with graph via new interface
Fix for last changes
Line break issues (#5)
Merge branch 'master' of https://github.com/ICS-TU-Ilmenau/fog

Conflicts:
	fog.routing.hrm/src/de/tuilmenau/ics/fog/ui/eclipse/commands/hierarchical/OpenClusterView.java
	fog.routing.hrm/src/de/tuilmenau/ics/fog/ui/eclipse/commands/hierarchical/SendPacket.java
	fog/src/de/tuilmenau/ics/fog/application/ReroutingExecutor.java
	fog/src/de/tuilmenau/ics/fog/facade/Host.java
	fog/src/de/tuilmenau/ics/fog/packets/SignallingAnswer.java
	fog/src/de/tuilmenau/ics/fog/packets/statistics/ReroutingTestAgent.java
	fog/src/de/tuilmenau/ics/fog/topology/AutonomousSystem.java
	fog/src/de/tuilmenau/ics/fog/transfer/gates/DirectDownGate.java
	fog/src/de/tuilmenau/ics/fog/transfer/manager/Controller.java
	fog/src/de/tuilmenau/ics/fog/transfer/manager/ProcessRerouting.java
Fix for cost value calculation if data rate of link is infinity