Build 180503 (preview)

• conemu#1539: Resize fixes for auto-hidden Taskbar and caption-less mode.
• conemu#1545: Fix paste problems in Windows 10 1803 on texts with spaces or CR/LF.
• Maximized ConEmu was not sized properly after display changes.
• Default Task: create {bash} if either bash.exe or wsl.exe are found.
• Improve Windows version detection in dlls.