[master] Finished merge of trac4125 (parser build)

ChangeLog

@@ -1,3 +1,9 @@
+1049.	[build]		fdupont
+	Add a new --enable-generate-parser configuration parameter
+	(disabled by default) which makes flex and bison to regenerate
+	parser files.
+	(trac #4125, git xxx)
+
 1048.	[func]		fdupont,tomek
 	Implement expression parser for client classification.
 	(Trac #4088, git ac9eb312bfd1c6bf22a868ad789a0c049f33f637)