Merge tag '0.13.1' into develop

No changes, just the full release cycle finished
Update travis config for latest android tools
Add app versionName and app versionCode to uploaded profile
Bump version
Typo in log
Merge pull request #127 from daydreaming-experiment/feature/issue-111

Feature/issue 111
all looks good
Follow semver 2.0.0 http://semver.org/

0.13.1-next has lower precedence than 0.13.1, so isn't good for
describing the upcoming version. Hence the 0.14-dev.
Use getHeight on API 10
Test update for travis config file

Travis builds are failing again. Changed two things:
* updated the Android SDK tgz and build-tools
* updated the version check for maven, which updates one of the plugins
  before build
Initial set of gradle tools imported

Add:
* a stub for build.gradle (to build the wrapper)
* the full gradle wrapper, along with the 1.12 distribution
* update .gitignore for the .gradle directory
Update ignore patterns
Update gradle build files
Got gradle to build

* moved files around to follow the default gradle tree
* fixed some minor lint and xml issues preventing compilation
Merge pull request #129 from daydreaming-experiment/feature/issue-104

Fix issue #104
Merge pull request #130 from daydreaming-experiment/feature/issue-128

Fix issue 128 (travis build error)
Initial set of gradle tools imported

Add:
* a stub for build.gradle (to build the wrapper)
* the full gradle wrapper, along with the 1.12 distribution
* update .gitignore for the .gradle directory
Update ignore patterns
Update gradle build files
Got gradle to build

* moved files around to follow the default gradle tree
* fixed some minor lint and xml issues preventing compilation
Rename internal project to daydreaming