It's totally wrong to install pkg's files into /var/lib and make them
writable by webserver! Moreover when Nextcloud supports multiple
app paths.
So we use two apps locations:
* /usr/share/webapps/nextcloud/apps - for apps installed by apk,
* /var/lib/nextcloud/apps - for apps installed from AppStore.
BTW Fedora uses the same approach.
There two main reasons for this change:
* Active support of PHP 5.x ended on January 2017, security support will
end on December 2018. Packages in the main repository should be
supported for at least 2 years, this means until first quarter of 2019
for the upcoming v3.6.
* php7 and its extensions are currently in the community repository, so
we can't use single abuild for both php5-* and php7-* packages (as we
do for Python and Lua packages).
This change was suggested by @vakartel, approved by @ncopa, @kaniini, and
@jirutka.