Fixed the issue that X.F app creates two windows (#219)
drwxr-xr-x - .circleci
-rw-r--r-- 363 .editorconfig
-rw-r--r-- 600 .gitattributes
-rw-r--r-- 33 .gitconfig
drwxr-xr-x - .github
-rw-r--r-- 1215 .gitignore
drwxr-xr-x - .nuspec
-rw-r--r-- 2247 LICENSE
-rw-r--r-- 11358 LICENSE.Apache-2.0
-rw-r--r-- 11197 LICENSE.Flora-1.1
-rw-r--r-- 316 NuGet.Config
-rw-r--r-- 497 README.md
-rw-r--r-- 4340 XSF.Build.sln
-rwxr-xr-x 2273 build.sh
drwxr-xr-x - packages
drwxr-xr-x - packaging
drwxr-xr-x - src