Merge pull request #983 from WindowsAzure/master

merging latest updates from azure-content master
landing page
Merge pull request #1016 from Blackmist/hdinsight-landing

HDInsight sub-folder + stubbed out preliminary landing page
Merge pull request #1019 from scottturnbull/myazure-content-pr

Myazure content pr
Merge pull request #1020 from WindowsAzure/master

Merge AUX 3.0
HTML: created stubs of all new topics
Merge pull request #1023 from ggailey777/html5

HTML: created stubs of all new topics
images used by hdinsight content
adding PM's content, with property and next steps sections
more PM authored content
adding line for clarification
HTML: image updates
Merge pull request #1025 from Blackmist/hdinsight-pm-content

Hdinsight pm content
Merge pull request #1026 from ggailey777/html5

HTML: image updates
Fixing links to new links per mail from David Murray
adding html5 left nav chunk
Merge pull request #1028 from mollybostic/aux31_0227

adding html5 left nav chunk
changed name of new mobile html left-menu chunk
Merge pull request #1029 from pennij/working_aux31

changed name of new mobile html left-menu chunk
Merge pull request #1027 from Blackmist/fixing-links

Fixing links to new links per mail from David Murray