Web/Easier editing update

[Simon Albrecht]

Hi everybody,

I noticed slight glitches when having a look at the ‘Easier editing’ 
page on the website. This is the text about Frescobaldi:

> Frescobaldi is a lightweight, yet powerful, music and text editor 
with many features added and enhanced particularly for LilyPond. Major 
features include point-and-click links between the code and music views, 
detailed score wizards, built in LilyPond documentation browser, syntax 
highlighting and automatic completion. Frescobaldi is written in Python, 
with PyQt4 for its user interface, and will run on all major operating 
systems (GNU/Linux, Mac OS X and Windows).

I’m not a native speaker, so help me out here: the two commas 
encompassing ‘yet powerful’ seem German to me. Is that idiomatic 
English? Also: built in or built-in?

Next, I’d suggest writing just PyQt instead of updating it to PyQt5, to 
avoid the necessity of further updates. Is that a good idea?

I’ll propose a patch when these are answered.

Best, Simon