packages: disable lnav (not available in wheezy, only in jessie)
add TODOs
webapps: fix Name and description fields in manifests
webapps: add manifests for owncloud apps
packages: add php5-cli (needed for tt-rss update cron jub)
webapps: add Piwik manifest (buggy, git repo does not have the vendor/ directory with composer and third party tools)