Merge pull request #43 from ivan-shaporov/dev

Assign _assetFileQuery in AssetFileCollection constructor.
Merge pull request #44 from WindowsAzure/dev

Merging changes from dev branch
Changing job.Submit to be typed task and renaming test category for daily bvt runs
Addressing code review feedback
Adding BytesUsed to IStorageAccount and StorageAccountData
Increasing version number
Exposing JobRefresh
Refactoring JobRefresh
Adding Refresh unit test into test/net/client/JobTests.cs
Merge pull request #46 from WindowsAzure/master

Syncing master with Dev
Changing version number
Increasing version number and merging with master
Conflicts:
	README.md
	Readme.md
	src/net/Client/Properties/AssemblyInfo.cs
Increasing version to 2.4.3.0 due to a breaking change in job.Submit
Merge pull request #48 from ivan-shaporov/dev

Hotfix - reusing ACS token.
Merge pull request #49 from ivan-shaporov/dev

Avoid multiple concurrent requests of ACS tokens.
Merge branch 'dev' of https://github.com/WindowsAzure/azure-sdk-for-media-services into dev