patch 7.4.1106
Problem: The nsis script can't be used from the appveyor build.
Solution: Add "ifndef" to allow for variables to be set from the command
line. Remove duplicate SetCompressor command. Support using other
gettext binaries. (Ken Takata) Update build instructions to use
libintl-8.dll.
diff --git a/src/version.c b/src/version.c
index f74281d..efc77c0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 1106,
+/**/
1105,
/**/
1104,