Merge pull request #71 from priand/Playground

Prepare the playground for multiple JS libraries
Support to  set the endpoint for the Grid.
Merge pull request #72 from DaviRyan/FixForGridToSetTheEndpoint

Support to  set the endpoint for the Grid.
New Community sample where user is shown a list of public communities
and can add themselves or another user to one or more selected
communities.
Merge pull request #69 from VimalDhupar/FixingSamples

Fixing Samples : Includes modifications in all samples, for displaying
Removed "customCommunityRow" function parameter
Changes to make the JS code relocatable (phase 1)
Merge pull request #75 from markewallace/RelocatableJavaScript

Changes to make the JS code relocatable (phase 1)
Merge pull request #76 from markewallace/ProxyFullyQualifiedUrlSupport

Handle a fully qualified URL in the proxy endpoint service once it
Adding default values of twitter url, authorize url, access token url
and request token url in Twitter managed bean.
greenhousestage profile sample fixes
corrected isArray method
JsonJavaFactory isArray() method change
Merge pull request #79 from VineetKanwal1/JsonJavaFactory

Json java factory
handle generic exception in UpdateProfilePhoto
using StringUtil to check empty filePath
Merge pull request #78 from swatisingh10/GreenHouseProfilesSampleFixes

greenhousestage profile sample fixes
Merge branch 'master' into HmacEncryptionandCheckStatus
New Sample were user can set up a community with selected colleagues and
create it with one click. ALSO changes to how getSelected function in
Grid.js works, to keep track of the selected rows between pages.
Adding onClick to the check box so that it works with the new way of
getting selected rows.