Fix inspection results discussed in #67  - UrlShortener.java

Changes
-- Remove unused code
-- Fix unchecked call for Android AsyncTask execute() by specifying the generic types
-- Check for NPE
Fix inspection results discussed in #67 - UrlShortener.java (phase 2)

Changes
-- Bring back unused code (as seen in another pull request that its going to be required soon.)
-- Fix unchecked call for Android AsyncTask execute() by specifying the generic types
-- Check for NPE
Fix inspection results discussed in #67  - UrlShortener.java

Changes
-- Remove unused code
-- Fix unchecked call for Android AsyncTask execute() by specifying the generic types
-- Check for NPE
Merge branch 'source-inspection-fixes' of https://github.com/asagrawal/physical-web into source-inspection-fixes
Fix code inspection results discussed in #67 - UrlShortener.java (phase 3)
-Incorporate review comments:
-- Fix indentation
-- Change generic Object to String for AsyncTask string params
Fix code inspection results discussed in #67 - UrlShortener.java (phase 4)
-- remove extra line between imports
Refactor code for lengthening of short url's in URLShortener utility
updated versionCode and build number for release
Revert "updated versionCode and build number for release"

This reverts commit 2bd003e57981b0e6f8617adc32e7aedc8b3e3497.
updated versionCode and build number for release
Update FCC details
Merge branch 'master' of https://github.com/google/physical-web
Import of iOS sources
Removed empty MBProgressHUD
Added MBProgressHUD as submodule
Implemented JSON-LD support on the proxy server
Merge pull request #166 from dinhviethoa/import-ios

Import of iOS sources
Merge pull request #170 from dinhviethoa/jsonld

Implemented JSON-LD support on the proxy server
Merge branch 'master' of https://github.com/google/physical-web
Merge pull request #164 from matthewsibigtroth/release_update

Release update