talkatu/talkatu

meson: Replace join_paths by /.

2020-09-15, Elliott Sales de Andrade
0f10848ece7a
meson: Replace join_paths by /.

It was added in 0.49.0, and we require 0.50.0.

Reviewed at https://reviews.imfreedom.org/r/118/
# Building
Talkatu uses [meson](https://mesonbuild.com) as it's build system.
Meson requires you to build in a directory other than the source directory.
To compile you can use the following commands:
```
meson build
cd build
ninja install
```