Update README.md

Version bump to 1.0.4

Author: dschreij

README.md

@@ -4,7 +4,7 @@ Copyright Daniel Schreij (2013-2014)
 
 ABOUT
 -----
-Current version: 1.0.3
+Current version: 1.0.4
 
 Datamerger can merge separate spreadsheets into one large spreadsheet. While doing so,
 it takes column names into account, and therefore can correct for small inconsistenties