Fix Set-AzureSubscription

The parameter should be CurrentStorageAccountName (Name was omitted before)
Select-AzureSubscription was missing, which lead to error about the StorageAccount regardless of first fix.
Merge pull request #2254 from Azure/FromPrivateRepo

From private repo
fixed incorrect link
Merge pull request #5987 from Azure/FromPublicRepo

Merge pull request #2254 from Azure/FromPrivateRepo
Removing capitalized file extensions
linux-install-lamp-stack update
Changed file extensions to lower case
linux-usernames update
Merge pull request #2256 from chrischang12/chrischang

Changed image file extensions
linux-use-root-privileges update
Update web-sites-php-configure.md
Elastic Scale Introduction graphics update
Merge pull request #2257 from szarkos/Nov14-refresh

Article freshness - 11/2014
Merge pull request #5989 from sidneyh/master

Elastic Scale Introduction graphics update
Update media-services-dotnet-how-to-use.md
Update mobile-services-how-to-use-multiple-clients-single-service.md
Update set-up-hybrid-cluster-microsoft-hpc-pack-2012-sp1.md
Merge pull request #2115 from sickboy/patch-1

Fix Set-AzureSubscription
Merge pull request #5985 from mollybostic/master_1118

fixed incorrect link
Merge pull request #5988 from tfitzmac/patch-12

Updated author and date