so apparently Qt 5.7 was released

[Dirk Hohndel]

> On Jun 16, 2016, at 7:10 AM, Jeroen Massar <jeroen at massar.ch> wrote:
> 
> On 2016-06-16 16:00, Dirk Hohndel wrote:
>> 
>> Not sure if it fixes any of our bugs, but it will likely cause
>> problems for the desktop version that still uses WebKit which was
>> deprecated in 5.6 and which I believe is now gone. So someone will
>> have to spend the time to make sure that Subsurface can be built both
>> with Qt 5.5 and with Qt 5.7 - which likely means that we will need
>> duplicate code for the rendering of the user manual and for the FB
>> connector (those are the two I can think of right now).
>> 
>> Any volunteers?
> 
> As I did the previous OSX builds...... I'll volunteer for the 5.7 round ;)

Excellent. Thank you for that.

/D