[Release] 0.1.2: Require Windows 10 (#277)

* 0.1.2 release

* oops

* more fixes on windows

* [Bugfix] fix download dir (#275)

* fix download dir

* add doc for the env var

* windows 7 -> 10

* doc update

README.md

@@ -33,7 +33,7 @@ DGL should work on
 
 * all Linux distributions no earlier than Ubuntu 16.04
 * macOS X
-* Windows 7 or later
+* Windows 10
 
 DGL also requires Python 3.5 or later.  Python 2 support is coming.
 

docs/source/install/index.rst

@@ -9,10 +9,10 @@ Currently DGL is tested on
 
 * Ubuntu 16.04
 * macOS X
-* Windows 7
+* Windows 10
 
 DGL is expected to work on all Linux distributions later than Ubuntu 16.04, macOS X, and
-Windows 7 or later.
+Windows 10.
 
 DGL also requires the Python version to be 3.5 or later.  Python 3.4 or less is not
 tested, and Python 2 support is coming.