Fix missing local variable initialization

This missing initializazion made remmina hangs when connecting:
remmina does not authenticated, so libssh receives a type=3
ssh packet during ssh_channel_open_session. But type=3
packet in libssh is unhandled, so ssh_channel_open_session
hangs forever.
Update multithread (pthread) support for libssh

As explained here: http://api.libssh.org/master/libssh_tutor_threads.html
Disable "Minimize windows to tray" option. Fixes #274

Disabled the "Minimize windows to tray" option. As discussed
in #274, minimizing connection windows in the system tray
is no longer possible. It's still possible to hide the main
window by closing it. It's also still possible to start
remmina whith the main window hidden with '-i'.
Fixes #270 bad shared folder name on window drive
Merge branch 'gtk3' of github.com:giox069/Remmina into gtk3
Fix missing local variable initialization

This missing initializazion made remmina hangs when connecting:
remmina does not authenticated, so libssh receives a type=3
ssh packet during ssh_channel_open_session. But type=3
packet in libssh is unhandled, so ssh_channel_open_session
hangs forever.

Update multithread (pthread) support for libssh …

As explained here: http://api.libssh.org/master/libssh_tutor_threads.html

Disable "Minimize windows to tray" option. Fixes #274 …

Disabled the "Minimize windows to tray" option. As discussed
in #274, minimizing connection windows in the system tray
is no longer possible. It's still possible to hide the main
window by closing it. It's also still possible to start
remmina whith the main window hidden with '-i'.

Fixes #303