Set mysql dependency to 2.0.0-alpha9 (fails on 2.0.0)

package.json

@@ -56,7 +56,7 @@
   },
   "devDependencies": {
     "sqlite3": "~2.1.12",
-    "mysql": "~2.0.0-alpha9",
+    "mysql": "2.0.0-alpha9",
     "pg": "~2.8.1",
     "watchr": "~2.4.3",
     "yuidocjs": "~0.3.36",
@@ -89,4 +89,4 @@
     "node": ">=0.6.21"
   },
   "license": "MIT"
-}
\ No newline at end of file
+}