Integrating cURL into cmake

[ShineQi]

Here's some progress on integrating curl into the cmake build system. I only tested it with vs2015.1 , boost 1.65.1, other environments are not checked.

[abitmore]

Thanks. The doc submodule update doesn't work for me. Other changed to be checked.

[ShineQi]

I don't know how to pull to the docs, but you can see my docs in https://github.com/cwyyprog/bitshares-core/wiki/WinDevEnv

[pmconrad]

The commit history looks horrible, please use rebase -i to clean this up.

[abitmore]

The commit history looks horrible, please use rebase -i to clean this up.

Or perhaps squash and merge?

[ShineQi]

I've cleaned the commit history, any problem else?

[abitmore]

@cwyyprog please revert the update on docs submodule (or perhaps rebase), because Travis can't fetch it. We'll update wiki later and bump the submodule. Thanks. Other than that, I need to find time to test the PR, and will update here when done.

[ShineQi]

@cwyyprog please revert the update on docs submodule (or perhaps rebase), because Travis can't fetch it. We'll update wiki later and bump the submodule. Thanks. Other than that, I need to find time to test the PR, and will update here when done.

Sorry, I tried to revert the docs submodule, but it seems that I failed.

[abitmore]

OK, Thanks. I'll merge into a temporary branch and make changes from there.