Final replacements

Looks like I missed a few. This should be complete now. And make us
ready for the repo rename and merging.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

lib/csp.js

@@ -6,7 +6,7 @@ var CspStrategy = {}
 var defaultDirectives = {
   defaultSrc: ['\'self\''],
   scriptSrc: ['\'self\'', 'vimeo.com', 'https://gist.github.com', 'www.slideshare.net', 'https://query.yahooapis.com', '\'unsafe-eval\''],
-  // ^ TODO: Remove unsafe-eval - webpack script-loader issues https://github.com/hackmdio/hackmd/issues/594
+  // ^ TODO: Remove unsafe-eval - webpack script-loader issues https://github.com/hackmdio/codimd/issues/594
   imgSrc: ['*'],
   styleSrc: ['\'self\'', '\'unsafe-inline\'', 'https://assets-cdn.github.com'], // unsafe-inline is required for some libs, plus used in views
   fontSrc: ['\'self\'', 'https://public.slidesharecdn.com'],

lib/response.js

@@ -527,7 +527,7 @@ function githubActionGist (req, res, note) {
           request({
             url: gistUrl,
             headers: {
-              'User-Agent': 'HackMD',
+              'User-Agent': 'CodiMD',
               'Authorization': 'token ' + accessToken
             },
             method: 'POST',