Use WebKit 4.1

Remove obsolete compile time option

Merge branch 'master' of github.com:johanmattssonm/birdfont

Merge branch 'vapier-master'

Merge branch 'master' of https://github.com/vapier/birdfont into vapier-master

Merge branch '2.x' of github.com:johanmattssonm/birdfont into 2.x
Version 2.16.12

Merge ../birdfont-2.x

Use webkit-4.0

Merge ../birdfont-2.x

Switch back to webkit2gtk-3.0

Merge ../birdfont-2.x

New version of WebKit

Merge ../birdfont-2.x

Switch to webkit2

Merge branch '2.x' of github.com:johanmattssonm/birdfont into 2.x

Merge branch 'master' of github.com:johanmattssonm/birdfont

Merge ../birdfont-2.x

Merge branch '2.x' of github.com:johanmattssonm/birdfont into 2.x

Merge branch '2.x' of github.com:johanmattssonm/birdfont into 2.x

build: allow pkg-config to be specified

It is common for cross-compilers to include a wrapped pkg-config like
armv7a-linux-gnueabi-pkg-config that is set up to find all the right
target libs.  By forcing pkg-config everywhere, it means the code can
only locate the build libs which are for the wrong architecture.

This also better aligns with upstream pkg-config build code where you
can control the full program name via the PKG_CONFIG env var.

Merge pull request #21 from vapier/2.x

configure: respect --valac option

Merge pull request #20 from vapier/master

configure: drop unused has_posixvala function

configure: respect --valac option

Make sure we don't still test `valac` when the compiler has been set to
a specific version/path.

(cherry picked from commit b807c200016fefa9dc5f588c1a88ce08bb61381c)

configure: drop unused has_posixvala function

Merge pull request #18 from vapier/master

configure: respect --valac option