Update .gitignore

.gitignore

@@ -4,22 +4,29 @@
 *.exe
 *.dll
 
-sonyupd
-sonyupdneo
-kodak6800
-kodak605
-kodak1400
-shinkos1245
-shinkos2145
-shinkos6145
-shinkos6245
+# Release archives
+*.tar.gz
+*.zip
+
+# main executable
+dyesub_backend
+
+# symlinks
 canonselphy
 canonselphyneo
-mitsu70x
 dnpds40
-dyesub_backend
-mitsu9550
-mitsup95d
+hiti
+kodak1400
+kodak605
+kodak6800
 magicard
+mitsu70x
+mitsu9550
 mitsud90
-hiti
+mitsup95d
+shinkos1245
+shinkos2145
+shinkos6145
+shinkos6245
+sonyupd
+sonyupdneo