Add shebangs to external tool scripts
Drop LIBVNCSERVER_WITH_CLIENT_TLS ifdef's

Now that libvncserver is no longer part of Remmina, the ifdef
is never taken into account. Removing it to enable GNUTLS support.
Fix for issue #143: removed call to gtk_adjustment_set_page_size()
Make 8bpp and 32bpp works. Fixes #329

Ignore alpha channel coming from FreeRDP when updating screen area,
restored also previously removed OrderSupport flags
Fix missing extended keycode and 'up' action when sending release key events. Fixes #7

When a remmina RDP window lose its focus, all pressed keys are removed
by sending a release event to the RDP server. This event was
missing the extended keycode and the 'up' action.
Change ssh connection file chooser setup, fixes #306
Help GNOME SHELL to not hide the floating toolbar

Remmina creates the floating toolbar (a popup window) at position y=-200
to have it hidden. But Gnome Shell sometimes is unable to show it.
Creating it at position y=6000 seems to help a little bit
gnome shell not to hide it.
Fix floating toolbar position in multimonitor environment
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.