CLOUDSTACK-652: meging 'portable public ip' feature

Squashed commit of the following:

commit f244f9ce7982db16984dd87c31545f1c0240c704
Merge: 993cbb0 f5c8e38
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Mon May 20 18:54:05 2013 +0530

    Merge branch 'master' into portablepublicip

    Conflicts:
    	server/src/com/cloud/server/ManagementServerImpl.java
    	server/test/org/apache/cloudstack/networkoffering/ChildTestConfiguration.java

commit 993cbb0df9fa6e64b96b18ed775b73cdf4a8f5d7
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Mon May 20 18:49:54 2013 +0530

    introduce 'transferPortableIP' interface method in network manger. This
    method will transfer association of portable ip from one network to
    another network.

commit 0c1c2652c1b39e9a81ca35464360e11ed9ef23f1
Merge: a718d35 a29e393
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Fri May 17 02:48:54 2013 +0530

    Merge branch 'master' into portablepublicip

    Conflicts:
    	utils/src/com/cloud/utils/net/NetUtils.java

commit a718d353f7acf0328d928673df6f22de1abc0acb
Merge: ecca117 c211818
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Mon May 13 21:22:19 2013 +0530

    Merge branch 'master' into portablepublicip

    Conflicts:
    	api/src/org/apache/cloudstack/api/ResponseGenerator.java
    	server/src/com/cloud/api/ApiResponseHelper.java
    	server/src/com/cloud/network/NetworkServiceImpl.java
    	server/src/com/cloud/network/addr/PublicIp.java
    	server/src/com/cloud/server/ManagementServerImpl.java
    	server/test/com/cloud/network/MockNetworkManagerImpl.java
    	server/test/com/cloud/vpc/MockConfigurationManagerImpl.java
    	server/test/com/cloud/vpc/MockNetworkManagerImpl.java
    	setup/db/db/schema-410to420.sql

commit ecca117e345224059297f5c1ffa0f442209b3160
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Mon May 13 20:05:29 2013 +0530

    added integration tests for testing portable ip ranges

commit 895a27c2771dbb497ecc6fe0d212589f012a48d8
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Mon May 13 15:12:19 2013 +0530

    - establish model for transferring portable IP association from a network
      with which it is associated to another network.

    - enabling static nat api, extended to transfer potrtable IP across the
      networks if the VM/network is different from the current associate
      network of the portable ip

commit 51509751b290c0e51cbdd104a9aebff189cbe806
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Mon May 13 12:05:33 2013 +0530

    seperate out associate/disassociate with guest network operations from
    alloc and release of portable ip

commit bd058f58c2d8d36ec25e31ed9de4cd414e0ca051
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Sun May 12 21:14:48 2013 +0530

    enhance disasociateIPAddr API to release protable IP associated with a
    guest network or VPC

commit 27504d9098729e8c3ac3b33f053f2d66ac2c4401
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Sun May 12 16:53:45 2013 +0530

    enhance asociateIPAddr API to acquire a protable IP and associate with a
    guest network or VPC

commit f82c6a8431647114462665c1306c6215cb92afd3
Merge: 3dbfb44 0749013
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Sat May 11 23:32:13 2013 +0530

    Merge branch 'master' into portablepublicip

    Conflicts:
    	api/src/com/cloud/network/IpAddress.java
    	api/src/org/apache/cloudstack/api/ResponseGenerator.java
    	client/tomcatconf/commands.properties.in
    	server/src/com/cloud/api/ApiResponseHelper.java
    	server/src/com/cloud/configuration/ConfigurationManagerImpl.java
    	server/src/com/cloud/server/ManagementServerImpl.java
    	server/test/org/apache/cloudstack/affinity/AffinityApiTestConfiguration.java
    	server/test/org/apache/cloudstack/networkoffering/ChildTestConfiguration.java
    	setup/db/db/schema-410to420.sql

commit 3dbfb44eb5b888367375a96b8ae0ac9cf54309a6
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Sat May 11 20:33:19 2013 +0530

    - add 'portable' boolean as property of IpAddress, persist the property in
    IPAddressVO, return the property in IpAddressResponse

    - add ability to request portable IP in associateIpAddress api

commit bf3cb274cfeb1ef41c63794ced83c7c6940f34cc
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Sat May 11 16:08:40 2013 +0530

    add the status of each portable IP (its state, details of associated data
    center/VPC/guest network etc) in the PortableIpRangeResponse returned by
    listPortableIpRanges API

commit e7b2fb22557cb4ef0ce9c8dde3ed1b9c857038bf
Author: Murali Reddy <muralimmreddy@gmail.com>
Date:   Sat May 11 14:36:01 2013 +0530

    Introdcues notion of 'portable IP' pool at region level.

    Introduces root admin only API's to provision portable ip to a region
       - createPortableIpRange
       - deletePortableIpRange
       - listPortableIpRanges