Release/v1.0.16 (#124) (#125)

* Merge branches 'develop' and 'master' of https://github.com/phillwiggins/flutter_parse_sdk

# Conflicts:
#	.idea/libraries/Dart_Packages.xml
#	lib/src/objects/parse_file.dart
#	lib/src/objects/parse_user.dart
#	pubspec.yaml

* Correct null pointer from success response with empty body

* Code tidy

* Added url port support
Added lint rules
Added object population on update and save

* Updated dependency uuid (#120)

* Fixed date query - Needs testing

* Added date formatting
Added cURL logging

* updating path_provider dependency (#121)

Author: phillwiggins