Use provided IP addresses to config BGP in VCPE Template.

Hardcoded values are now replaced by user provided ones.
Merge pull request #479 from jordi-puig/develop

 Template Selector in Menu
Merge branch 'develop' into fix/vcpe-builder-bgp-config-ipaddresses-not-hardcoded

Conflicts:
	extensions/bundles/vcpe/src/main/java/org/opennaas/extensions/vcpe/manager/templates/Template.java
	extensions/bundles/vcpe/src/main/resources/templates/template.properties
Merge branch 'develop' into fix/vcpe-builder-bgp-config-ipaddresses-not-hardcoded
Fix error in vcpe Template with BGP ASNUM.

ASNUM used in BGP was taken from a properties file.
This patch overrides this property value with the value given in VCPENetworkModel.getBGP()
Merge pull request #481 from jordi-puig/develop

Properties deleted on GUI.
IsFree messages from properties files.
Merge pull request #482 from isartcanyameres/fix/vcpe-builder-bgp-config-ipaddresses-not-hardcoded

Fix/vcpe builder bgp config not hardcoded
LogicalRouters hold a reference to it's parent physical router, in vcpe model.
Merge branch 'develop' of git://github.com/dana-i2cat/opennaas into develop
Merge pull request #483 from isartcanyameres/feature/logical-routers-store-reference-to-physicals-in-vcpemodel

LogicalRouters hold a reference to it's parent physical router
Merge branch 'develop' of git://github.com/dana-i2cat/opennaas into develop
Improvement in IsFree feature.

-The isFree method only checks with other VCPE's.
-The isFree method allow for routers, e.g. two identicals interfaces in
differents routers is not an error.
-Internationalization in messages.
Rename msg names