fix comment errors, sp. & grammar

code styling - add missing braces

Allow user info to be retrieved without groups

Some parts of dokuwiki (e.g. recent changes, old revisions) can
requests lots of user info (to provide editor names) without
requiring any group inform

Allow user info to be retrieved without groups

Some parts of dokuwiki (e.g. recent changes, old revisions) can
requests lots of user info (to provide editor names) without
requiring any group information.

This change also implements caching of user info by authmysql &
authpgsql plugins to avoid repeated querying of the DB to retrieve
the same user information.

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translation update

Restore correct public interface of getUserData() for authldap
plugin

The outer/public getUserData() implemented as a wrapper for the
previous fn which is now protected.

translation update

translation update

translation update

avoid HTTP image screenshot urls. closes #595

translation update

Extension manager: Fix cache extension to be .repo

The dot was missing i.e. the cache files had no real extension at all.

remove reference to reference from comments

translation update

translation update

translation update

remove '&' from object parameters, PHP5 style not E_ALL

improvements in acl plugin to avoid missing var errors

use empty() where array values might not be set

translation update

translation update

correct mis-spelled var name and correct empty password fields test

added missing language strings

fixed merge error

translation update

improved German translation