Changed docker data volume to project specific name

tools/dump_pfosten.py

@@ -0,0 +1,12 @@
+# This script needs mysqldump to be installed
+# apt install mysql-client
+
+import os
+import datetime
+
+str_now=datetime.datetime.now().strftime('%Y-%m-%d_%H%M%S')
+
+filename="pfosten_"+str_now+".sql"
+print("Dumping "+filename)
+cmd="""mysqldump -ud0274241 -psuperpfosten! -h hoschis-tippspiel.de d0274241 > """+filename
+os.system(cmd)