Qt 5.4 again

[Marco Martin]

On Monday 12 January 2015, Jonathan Riddell wrote:
> Last we looked we decided that Plasma 5.2 can depend on Qt 5.4.  But
> come beta time it seems nobody has felt the need to change any modules
> to require on Qt 5.4.  Martin G says KWin has a bunch of fixes that
> work with 5.4 only but it'll also work fine with Qt 5.3.  The KDE CI
> system has Qt 5.3 so updating a build requirement would make that
> break.
> 
> So I plan to announce Plasma 5.2 as working with either Qt 5.3 or 5.4
> but it'll have some fixes if you use Qt 5.4.  I'll also say these are
> build time fixes so packages should be recompiled after updating a
> distro to Qt 5.4.

5.3 supported but 5.4 recommended sounds good

-- 
Marco Martin