Fix "in_zip_path_" functionality in GetFilesInDir for zip files
Fix Android input box function. Add dpi to command line options in PCMain.
Add finish command to NativeActivity
Fix dumb typo in surrogate pair check.
Merge pull request #190 from unknownbrackets/utf16

Fix dumb typo in surrogate pair check
viewgroup.h: Include fix
Remove unused code
Link backtrace.cpp on Android too for consistency. Use it in FLOG.
Allow customizing the tab left/right keys.
Merge pull request #192 from unknownbrackets/keymap

Allow customizing the tab left/right keys
Add fallback in case of xdg-utils is not installed

Some distributions may not install xdg-utils by default,
so inform the user in case of xdg-utils is not installed
when the user tries to use any of the xdg-utils commands.
I forget how C works after using Python...
Merge pull request #193 from m45t3r/master

Add fallback in case of xdg-utils is not installed
Log detected DPI.
Add drag capturing (useful to resolve conflicts between scrollviews and draggable controls within)

Some misc cleanup
Add a new "queryConfig" native android function, so that the Java code can check
config options like rotation lock (config is implemented on the C++ side).
Add support for querying the desired rotation setting from Java.
draw_buffer text rendering: Handle non-breaking spaces (instead of printing a '?').
Theme fix for text input alert dialogs
Filter out A:/ and B:/ drives from PathBrowsers.