Merge pull request #8 from avakar/flip

Flip
Shupito: Fix crash in "Export memory content..."
[704] Analyzer: Switch zoom in/out for mouse wheel in graphwidget
[705] Terminal: Add option to change what enter key sends
[706] Play error sound for some of the ToolTipWarns
[707] Save config for connections enumerated by SerialPortEnumerator
showMessageBox instead of throw
Fixed a crash when opening a user-owned USB ACM connection.
Linux fixes in libyb.
Removed the old Connection::connectResult signal.
Removed the old Connection::Open.
Added ThreadChannel and updated usb connections to use it.
[708] Shupito: add horizontal mode for MiniShupitoUI
[709] Shupito: properly regroup widgets during vertical/horizontal switch
Fixed a crash in the connection dlg.
Reimplemented yb usb enumeration.
Fix some erros foundby valgrind
[710] Analyzer: switch zoom in/out mouse wheel direction for graph axes
Proper handling of device removal/replugin.
Fixed on Linux.