[fix, Android] Android 2.3 getScreenSize crash (#4356)

* [fix] Android 2.3 getSceenSize https://github.com/koreader/android-luajit-launcher/pull/87

Also includes:

* 7z: update to 18.05 https://github.com/koreader/android-luajit-launcher/pull/88

If nothing else, from 18.03:

> The speed for single-thread LZMA/LZMA2 decoding was increased by 30% in x64 version and by 3% in x86 version.

platform/android/luajit-launcher

@@ -1 +1 @@
-Subproject commit 7ba7cb74dcfa19c76c29b5b5428f72cd53125eb3
+Subproject commit 0e99e33882674633a7460e9f139d4e1151fd60eb