Add some documentation for M-x el-get-reload and the :reload recipe p…

…roperty.

Also bump the minor version number.

README.asciidoc

@@ -308,6 +308,10 @@ M-x el-get-update-all::
     updating a package requires some adjustments to your setup.  Updating
     all of them at once will require reviewing almost all your setup.
 
+M-x el-get-reload::
+
+    Reload the given package files.  Happens automatically at update time too.
+
 M-x el-get-remove::
 
     Will prompt for an +installed+ package name, with completion, then

el-get-custom.el

@@ -172,6 +172,14 @@ definition provided by `el-get' recipes locally.
     List of files to load, or a single file to load after having
     installed the source but before `require'ing its features.
 
+:reload
+
+    List of the features prefixes that the package requires, that
+    defaults to the package symbol itself (e.g. for the package
+    el-get, the :reload property defaults to 'el-get). This will
+    be used by both M-x el-get-reload and M-x el-get-update in
+    order to reload your package's files.
+
 :features
 
     List of features el-get will `require' for you.

el-get.el

@@ -156,7 +156,7 @@
 (defgroup el-get nil "el-get customization group"
   :group 'convenience)
 
-(defconst el-get-version "4.0.3" "el-get version number")
+(defconst el-get-version "4.0.4" "el-get version number")
 
 (defconst el-get-script (or load-file-name buffer-file-name))