add _DISABLE_FLOICON
fix auth_base referencing dbh which was not present
pass DB_PORT as string
actually check for DB_PORT in installer, add better hints and use mysqli if available
tweak notice/warning/etc display
entry_author: do not double escape string, author & comments: trim
floIcon: add experimental SizeInBytes cap
more notice css tweaks
_DISABLE_FLOICON -> _ENABLE_FLOICON
fix missing DB object when instantiated to import opml
only pass port to mysqli_connect when it is set
pref_prefs: remove second argument from the constructor
do not try to calculate icon avg color if GD is not present
Revert "_DISABLE_FLOICON -> _ENABLE_FLOICON"

This reverts commit 7f1113a56ad8e66ce3dd9886b4b11dfc30573c7f.
make logging configurable; add logging to syslog
check if http_response_header is defined
update installer mysqli_connect to only use port if defined
trim received feed data on fetch
subscribe: verify XML before adding to the database; fetch: try to work around entity problems if initial parsing fails
update_rss_feed: simplify debug reporting