Notable changes:
* Use toml as new default storage backend:
Upstream has removed the ini plugin, we have been using in the
past. toml is still somewhat experimental, but upstream has
designated it as future recommended default.
* Remove the dependency on boost. The only plugin needing that has
been removed upstram.
* Enable plugins for libev and libuv event loop integration. This
adds two new packages with the respective dependencies.
Upstream has fixed the bugs preventing us from using this.
* Enable the internal notification plugin/system. This allows
applications to automatically receive notifications about changes
to their configuration. Again upstream fixing bugs enables this
for us.
* Set the environment variable $XDG_CACHE_HOME to "/tmp/" globally
to prevent elektra (and possibly other applications) from
writing temporary data to flash.
Signed-off-by: Harald Geyer <harald@ccbib.org>
