* [core,ios] rename all occurrence of www.mapbox.com/map-feedback to apps.mapbox.com/feedback
* [ios,android] rename all occurrence of www.mapbox.com/feedback to apps.mapbox.com/feedback
- puts function definitions in a namespace ... {} rather than using namespace ...;
- remove trailing whitespace
- add trailing newline
- protect SQL statements from being formatted by clang-format
ios.xcodeproj is an ordinary Xcode project with ordinary Xcode targets for iosapp and ios-bench, all contained in an ordinary Xcode workspace that happens to also reference the gyp-generated platform.xcodeproj. The iosapp target links to and embeds Mapbox.framework, which is a product of the gyp-generated platform.xcodeproj. ios-tests.xcodeproj is also in the workspace, enabling simultaneous debugging of KIF tests, the SDK, and core code.
Moved storyboards into Base.lproj and image assets into an asset catalog. Removed iOS 6 assets from the iosapp asset catalog. Moved the original ios-bench application icon SVG into a non-project location.
Removed app/Settings.bundle, which is identical to framework/Settings.bundle.
Removed a broken reference to an unused header from the ios-tests project.
* Main gyp files are now standardized as platform/<platform>/platform.gyp.
* Each platform gyp file defines appropriate loop_lib and headless_lib variables.
* Each platform gyp file includes mbgl.gypi, which defines base targets which may be useful to all platforms.
* CI targets are consistent across platforms: `make $(PLATFORM) && make test-$(PLATFORM)`.
* Renamed the "linux" test app to "glfw". It's now built in OS X CI.
* Android build flakiness is fixed.
* iOS CI builds the bench and iosapp targets.
* Mesa version is now in one place.
* CI scripts use bash "strict mode" and correct error handling.
* All build output goes to the build directory.
* Removed vestigial iOS/OS X/Android Travis scripts.
