Correct CHANGELOG to reflect that 0.4.0 was never actually released

Author: peter-b

CHANGELOG.md

@@ -1,16 +1,14 @@
 ## 0.5.0 - Added LiveCode server support
 * Merged with the "revigniter-livecode" package for Atom
   * Added support for LiveCode server script files (`.lc` and `.irev`)
+* Greatly-improved LCB autocomplete support
+  * Correctly suggest handler, variable, constant, and type names, and known
+    keywords
+* Minor LCB syntax highlighting bugfixes
 
 Thanks to Adam Robertson for converting LiveCode server support from the
 original TextMate grammars.
 
-## 0.4.0 - Improvements to completion
-* Greatly-improved autocomplete support
-  * Correctly suggest handler, variable, constant, and type names, and
-    known keywords
-* Minor syntax highlighting bugfixes
-
 ## 0.3.0 - Snippet support
 * Add basic snippets for commonly-used blocks. These work with Atom's new
   built-in autocomplete support.