update .gitignore to include Visual Studio artifacts
@@ -26,3 +26,10 @@ massif-*
# CMake generates *.dir/ folders for in-tree builds (used by MSVC projects), ignore all of those:
*.dir/
+
+# Visual Studio artifacts
+/visualc/VS2010/.localhistory/
+/visualc/VS2010/.vs/
+/visualc/VS2010/Debug/
+/visualc/VS2010/Release/
+/visualc/VS2010/*.vcxproj.user
