chabgelog updated

CHANGELOG

 smasch (1.1.0~alpha.0-1) unstable; urgency=low
 
-  * improvement: warn the user on invalid date range when creating a holidays/extra availability (#427)
+  * improvement: warn the user on invalid date range when creating a
+    holidays/extra availability (#427)
   * improvement: user can modify/add Subject types with custom follow up schema
     (#371)
   * improvement: added week day to daily planning main date (#425)
   * improvement: possibility to import custom fields data from csv file (#385)
+  * improvement: added warning in case of printing voucher with no voucher
+    templates (#451)
   * bug fix: privacy notice files were not removed when policy was removed
   * bug fix: holidays were wrongly encoded and displayed when they span
     multiple days (#430, #429)