Merge branch 'develop'
Merge branch 'develop'
[#237] bump version number
[#237] Use Java 7 compiler
[#237] Catch response parsing exception
[#237] Clean up unreachable code
[#237] Clean up string resources

* TODO: ES,FR translations
[#237] Update build properties

* Use latest stable versions of Gradle
[#237] Bump version number
[#232] Get rid of tmp hack

* Preserve survey group original data
[#237] Update string translations
[#237] Speed batch-deployment script

* No need to 'gradle clean' each version
[#237] Update release notes
[#237] Homogenize release notes format

* Use same format as akvo-flow repo.
Merge branch 'release/237'
Merge branch 'master' into develop