cmake: changed project name from google-glog to glog

This fixes the default install location on Windows. Specifically,
find_package works now out-of-the box with the default
CMAKE_INSTALL_PREFIX.

CMakeLists.txt

@@ -8,7 +8,7 @@ if (POLICY CMP0063)
   cmake_policy (SET CMP0063 NEW)
 endif (POLICY CMP0063)
 
-project (google-glog)
+project (glog)
 
 enable_testing ()