Update changelog.md. (#1866)

Author: sean-mcmanus

Extension/CHANGELOG.md

@@ -3,8 +3,13 @@
 ## Version 0.17.0: May 7, 2018
 * Auto-complete for headers after typing `#include`. [#802](https://github.com/Microsoft/vscode-cpptools/issues/802)
 * Configuration improvements. [#1338](https://github.com/Microsoft/vscode-cpptools/issues/1338)
-  * potentially addresses: [#368](https://github.com/Microsoft/vscode-cpptools/issues/368), [#410](https://github.com/Microsoft/vscode-cpptools/issues/410), [#1229](https://github.com/Microsoft/vscode-cpptools/issues/1229), [#1270](https://github.com/Microsoft/vscode-cpptools/issues/)
-* Add support for querying system includes/defines from compilers in WSL environment.
+  * Potentially addresses: [#368](https://github.com/Microsoft/vscode-cpptools/issues/368), [#410](https://github.com/Microsoft/vscode-cpptools/issues/410), [#1229](https://github.com/Microsoft/vscode-cpptools/issues/1229), [#1270](https://github.com/Microsoft/vscode-cpptools/issues/), [#1404](https://github.com/Microsoft/vscode-cpptools/issues/1404)
+* Add support for querying system includes/defines from WSL and Cygwin compilers. [#1845](https://github.com/Microsoft/vscode-cpptools/issues/1845), [#1736](https://github.com/Microsoft/vscode-cpptools/issues/1736)
+* Stop automatically adding `/usr/include` to the `includePath`. [#1819](https://github.com/Microsoft/vscode-cpptools/issues/1819)
+* Fix wrong configuration being used if there are four or more. [#1599](https://github.com/Microsoft/vscode-cpptools/issues/1599)
+* Fix `c_cpp_properties.json` requiring write access. [#1790](https://github.com/Microsoft/vscode-cpptools/issues/1790)
+* Change file not found in `compile_commands.json` message from an error to a warning. [#1783](https://github.com/Microsoft/vscode-cpptools/issues/1783)
+* Fix an IntelliSense crash during completion requests. [#1782](https://github.com/Microsoft/vscode-cpptools/issues/1782)
 
 ## Version 0.16.1: March 30, 2018
 * Fix random deadlock caused by logging code on Linux/Mac. [#1759](https://github.com/Microsoft/vscode-cpptools/issues/1759)