Restructured PCE module sequencing.

Restructured PCE module sequencing.
Fixed bugs in discovered document cache.
Changed Gof3 document discovery to use independent connections for each
document to get around OpenNSA bug.
Removed unneeded configuration files.
Merge branch 'master' of https://github.com/BandwidthOnDemand/nsi-pce

Conflicts:
	config/beans.xml
	src/main/java/net/es/nsi/pce/pf/AuthPCE.java
	src/main/java/net/es/nsi/pce/pf/DijkstraPCE.java
	src/main/java/net/es/nsi/pce/pf/PathfinderCore.java
	src/main/java/net/es/nsi/pce/pf/PolicyPCE.java
	src/main/java/net/es/nsi/pce/pf/SequentialPCE.java
	src/main/java/net/es/nsi/pce/pf/api/Path.java
Merge branch 'master' of https://github.com/BandwidthOnDemand/nsi-pce

Conflicts:
	config/beans.xml
	src/main/java/net/es/nsi/pce/pf/AuthPCE.java
	src/main/java/net/es/nsi/pce/pf/DijkstraPCE.java
	src/main/java/net/es/nsi/pce/pf/PathfinderCore.java
	src/main/java/net/es/nsi/pce/pf/PolicyPCE.java
	src/main/java/net/es/nsi/pce/pf/SequentialPCE.java
	src/main/java/net/es/nsi/pce/pf/api/Path.java