Add tools to extract .d.ts signatures

.gitignore

@@ -8,6 +8,7 @@ plugins/c9.ide.layout.classic/less/*.css
 plugins/c9.vfs.standalone/www/less.html
 plugins/c9.ide.run/todo
 plugins/c9.vfs.standalone/www/charts
+plugins/c9.ide.language.javascript.tern/util/sigs_ts
 scripts/build
 build/output
 build/standalone/

package.json

@@ -57,7 +57,7 @@
         "c9.ide.language.javascript": "#26cf518b28",
         "c9.ide.language.javascript.immediate": "#9a2cce9121",
         "c9.ide.language.javascript.eslint": "#aae7ad0dc1",
-        "c9.ide.language.javascript.tern": "#a65ad88dd9",
+        "c9.ide.language.javascript.tern": "#b40d154333",
         "c9.ide.language.javascript.infer": "#ebb2daf81a",
         "c9.ide.language.jsonalyzer": "#c5dfe5fb7e",
         "c9.ide.collab": "#b94018ab2b",