Merge pull request google#338 from matthewsibigtroth/new_release_851

new release 0.1.851

Merge pull request google#318 from matthewsibigtroth/new_release_850

new release 850

Merge pull request google#283 from matthewsibigtroth/new_release_830

new release 830

Merge pull request google#272 from matthewsibigtroth/lockscreen_notif…

…ication_remix

Lockscreen notification remix

Merge pull request google#252 from matthewsibigtroth/release__build_801

release build 801 updated

Merge pull request google#252 from matthewsibigtroth/release__build_801

release build 801 updated

Merge pull request google#249 from matthewsibigtroth/updating_build_i…

…n_gradle

updating build number in build.gradle

Merge pull request google#177 from matthewsibigtroth/url_writing_url_…

…prefix_fix

Handling malformed urls.
Quick-merging for London demo.

Merge pull request google#175 from matthewsibigtroth/updates_for_release

Versioning updates for latest release

Merge pull request google#159 from matthewsibigtroth/lengthen_short_urls

reinstated lengthened url in the edit urls card