Uploaded a gitignore for critical files and fixed appimage messages being displayed

The gitignore ignores important am2r files that are needed for testing
The appimage prompt with "pls upload this appimage" should be fixed, tested on both ubuntu 16.04 and Arch. For further clarification, look at comments in python script.

.gitignore

@@ -0,0 +1,3 @@
+am2r_15_2/
+ARCHIVE-am2r_15_2/
+AM2R_11.zip

patcher.py

@@ -135,7 +135,11 @@ if (type == '1'):
     print("Creating Appimage...")
     copytree("patch_data/AM2R.AppDir", "AM2R.AppDir")
     subprocess.call(["cp", "-rpT", output , "AM2R.AppDir/usr/bin"])
-    retcode = os.system("./AppImageCreation.sh AM2R.AppDir &> /dev/null")
+    fd = os.open("/dev/null", os.O_WRONLY)
+    savefd = os.dup(2)
+    os.dup2(fd,2)
+    subprocess.call(["sh", "./AppImageCreation.sh", "-n"])
+    os.dup2(savefd,2)
     rename("AM2R-x86_64.AppImage", "AM2R.AppImage")
     rmtree("AM2R.AppDir")