updated cmake version typo

Author: smasherprog

.appveyor.yml

@@ -28,7 +28,7 @@ install:
   - pip install autobahntestsuite
   - mkdir deps
   - cd deps
-  - set CMAKE_URL="https://cmake.org/files/v3.10/cmake-3.10.1.-win64-x64.zip"
+  - set CMAKE_URL="https://cmake.org/files/v3.10/cmake-3.10.1-win64-x64.zip"
   - appveyor DownloadFile %CMAKE_URL% -FileName cmake.zip
   - 7z x cmake.zip
   - move cmake-* cmake # Move to a version-agnostic directory