Update GtkD to 2.8.3, prep for next release

Author: gnunn1

configure.ac

@@ -40,7 +40,7 @@ case $(basename $DC) in
 esac
 
 # Checks for libraries.
-GTKDVER=3.8.2
+GTKDVER=3.8.3
 # Use pkg-config to look for gtkd. Tries to find a compiler specific suffix, then falls back to suffix-less
 PKG_CHECK_MODULES([GTKD], [gtkd-3$DC_SUFFIX >= $GTKDVER vted-3$DC_SUFFIX >= $GTKDVER],,
 				  [PKG_CHECK_MODULES([GTKD], [gtkd-3 >= $GTKDVER vted-3 >= $GTKDVER])])

dub.json

@@ -7,10 +7,10 @@
     "dflags-ldc": ["-disable-linker-strip-dead","-defaultlib=:libphobos2-ldc.a,:libdruntime-ldc.a"],
     "dependencies": {
         "gtk-d:gtkd": {
-            "version": "3.8.2"
+            "version": "3.8.3"
         },
         "gtk-d:vte": {
-            "version": "3.8.2"
+            "version": "3.8.3"
         }
     },
     "buildTypes": {

dub.selections.json

@@ -1,6 +1,6 @@
 {
 	"fileVersion": 1,
 	"versions": {
-		"gtk-d": "3.8.2"
+		"gtk-d": "3.8.3"
 	}
 }

source/gx/tilix/constants.d

@@ -71,7 +71,7 @@ enum APPLICATION_ID = "com.gexperts.Tilix";
 
 // Application values used in About Dialog
 enum APPLICATION_NAME = "Tilix";
-enum APPLICATION_VERSION = "1.8.2-0.0.3";
+enum APPLICATION_VERSION = "1.8.3";
 enum APPLICATION_AUTHOR = "Gerald Nunn";
 enum APPLICATION_COPYRIGHT = "Copyright \xc2\xa9 2017 " ~ APPLICATION_AUTHOR;
 enum APPLICATION_COMMENTS = N_("A VTE based terminal emulator for Linux");