themes templates have to override plugins
docs: updated report customizing
added custom reports template
reports2: quote filenames
menu: added new helper
make colums selectable for json requests
empty files are not good in packaging, so add some notes
fixed columns
minimal centos need at least libXext and one font
added test for json columns
fixed colums in get query size
fixed trying to create empty folder
added spanish translation (thanks Dene Tariko)
conf: fixed editing empty config files
nicer http errors
conf: nicer save & reload button
added documentation about used env variables
added ssl_verify_hostnames config option
nicer connection source in extinfo
https: make timeouts work