Use pragma message instead of warning for msvc, fixes #178
Merge pull request #191 from p-push/msvc-warning

Use pragma message instead of warning for msvc, fixes #178
Current libcurl version is 7.37.0
Resource retrieval quickstart example
Response headers quickstart example
Quickstart - writing to a file
Use WRITEDATA instead of WRITEFUNCTION for new code
Quickstart - following redirects and setting options
Quickstart - getinfo call
Include quickstart into main documentation
Move docstrings to their own file.

This way docstrings are much prettier to look at and easier to edit.