Hello,

I built Geany with GTK 3.7.12, and then I tried to build Geany Plugin Spellcheck and GeanyVC for Geany 0.14 GTK3.

For Spellcheck, no issue encountered, but for VC, it denied to build with GTK3, so I tried to port GeanyVC to GTK3 and it seems that it works fine.

There is still a call to a deprecated function but as I don't know this function I prefer avoid issues while the function still exists.
I join the diff of my work, and I hope you'll like it and merge it to the geany-plugins-master branch.

Goodbye.