Update credits and release notes

CREDITS.md

@@ -6,6 +6,7 @@
 * celeron55
 * Daniel Oaks
 * Danny Al-Gaaf
+* Dialga
 * F-Secure Corporation
 * HariKamath Kamath
 * Jordan Shelley

RELEASE_NOTES.md

@@ -5,6 +5,8 @@ Release Notes v1.7 (Under Development)
 Changes
 -------
 
+- Fix build for MinGW-x64 and TDM-GCC
+- Update SQLite to 3.8.8.3
 - Fix CGI variables SCRIPT_NAME and PATH_TRANSLATED
 - Set TCP_USER_TIMEOUT to deal faster with broken connections
 - Add a Lua form handling example