Updating Typescript to use Flycheck rather than Flymake

add hooks for flycheck while stripping out flymake.

As all other packages are written to depend on flycheck, I thought I would strip it out of this package to let us have a consistent interface in all layers.

Add author.

Cleanup of package.el

contrib/!lang/typescript/packages.el

@@ -41,7 +41,7 @@
   (use-package tss
     :defer t
     :mode ("\\.ts\\'" . typescript-mode)
-    :init (evil-leader/set-key-for-mode 'typescript-mode
+    :init (evil-leader/set-key-for-mode 'flycheck-mode
             "mgg" 'tss-jump-to-definition
             "mhh" 'tss-popup-help)
     :config