Add libwebp
Add glib-networking
Add Switch Perl module
Merge pull request #708 from pyhalov/webkit

Webkit prerequisiteves
Update libsoup to 2.34.3
Merge pull request #709 from pyhalov/webkit

Update libsoup to 2.34.3
Add webkit
Merge pull request #710 from pyhalov/webkit

Add webkit
Switch devhelp and yelp to webkit
Merge pull request #711 from pyhalov/webkit

Switch devhelp and yelp to webkit