delete reserved-ip should prompt only if address exists

Fix for https://github.com/MSOpenTech/azure-sdk-tools-xplat/issues/61
Corrected recording files,modified variable changes and including the test in testlist
Skip empty data blocks during fixed VHD upload
Avoid warning about process.nextTick recursive deferral

This warning can actually lead to a crash.
See https://github.com/MSOpenTech/azure-sdk-tools-xplat/issues/80
Merge remote-tracking branch 'upstream/dev' into dev
Fixing merge conflicts
Merge branch 'orangemocha-fixedvhd' into dev
Merge pull request #72 from MSOpenTech/orangemocha-Issue61

delete reserved-ip should prompt only if address exists
vm create: check virtual network against existing deployment

When the user specifies the --connect option to the vm create command,
and there is an existing deployment, the new VM will use whatever
virtual network the existing deployment belongs to.
If the user also passes --virtual-network-name, we need to check
that the given virtual network matches the existing deployment's.

I also made --virtual-network-name mandatory when --subnet-names is given.

This fixes https://github.com/MSOpenTech/azure-sdk-tools-xplat/issues/65
Merge pull request #82 from MSOpenTech/orangemocha-Issue65

vm create: check virtual network against existing deployment
Merge remote-tracking branch 'upstream/dev' into dev

Conflicts:
	test/testlist.txt
[1]. Support for specialized VMImage in vm create command [2]. commands to manage public-ips [3]. commands to manage endpoint acl
Fix for bug: https://github.com/MSOpenTech/azure-sdk-tools-xplat/issues/91
fixing bug: https://github.com/MSOpenTech/azure-sdk-tools-xplat/issues/92
Merge pull request #89 from anuchandy/dev

[1]. Support for specialized VMImage in vm create command [2]. commands ...
ACL and PIP testcases added

ACL and PIP testcases added
Increased the timeout of cli.vm.create_loc_vnet.js
Merge remote-tracking branch 'upstream/dev' into dev
Merge branch 'dev' of github.com:MSOpenTech/azure-sdk-tools-xplat into dev
Merge pull request #2 from vikasmathod/ACL

ACL and PIP testcases added
Merge pull request #95 from babumuralidharan/dev

Added Tests to accomodate PIP and ACL commands