General refactor & cleanup

+ refactor package management
+ core-editor: describe ediff
+ core-popups: alphabetized hack blocks
+ ui/doom-modeline: refactor buffer path fn
+ feature/version-control/+git: autoload magit-blame

core/autoload/packages.el

@@ -11,7 +11,7 @@
     (when last-refresh
       (setq doom--last-refresh last-refresh)))
   (when (or (not doom--last-refresh)
-            (> (nth 1 (time-since doom--last-refresh)) 600))
+            (> (nth 1 (time-since doom--last-refresh)) 900))
     (package-refresh-contents)
     (persistent-soft-store
      'last-pkg-refresh (setq doom--last-refresh (current-time))
@@ -22,15 +22,17 @@
   "Get which backend the package NAME was installed with. Can either be elpa,
 quelpa or nil (if not installed)."
   (doom-initialize)
-  (unless (quelpa-setup-p)
-    (error "Could not initialize quelpa"))
   (cond ((let ((plist (cdr (assq name doom-packages))))
            (and (not (plist-get plist :pin))
+                (or (quelpa-setup-p)
+                    (error "Could not initialize quelpa"))
                 (or (assq name quelpa-cache)
                     (plist-get plist :recipe))))
          'quelpa)
         ((assq name package-alist)
-         'elpa)))
+         'elpa)
+        (t
+         (error "%s package not installed" name))))
 
 ;;;###autoload
 (defun doom-package-outdated-p (name)
@@ -46,7 +48,7 @@ list of the package."
                (let ((recipe (assq name quelpa-cache))
                      (dir (expand-file-name (symbol-name name) quelpa-build-dir))
                      (inhibit-message t))
-                 (if-let (ver (and (quelpa-setup-p) (quelpa-checkout recipe dir)))
+                 (if-let (ver (quelpa-checkout recipe dir))
                      (version-to-list ver)
                    old-version)))
               ('elpa
@@ -70,8 +72,6 @@ the packages relevant to that backend.
 Warning: this function is expensive; it re-evaluates all of doom's config files.
 Be careful not to use it in a loop."
   (doom-initialize-packages t)
-  (unless (quelpa-setup-p)
-    (error "Could not initialize quelpa"))
   (delq nil
         (mapcar (lambda (pkgsym)
                   (or (assq pkgsym doom-packages)