PSR-12 compliancy

Migrate all the logging handlers to namespaces. Make SimpleSAML\Logger a bit more intelligent so that it allows using custom logging handlers. Now you just need to implement SimpleSAML\Logger\LogginghandlerInterface in a class, and set the 'logging.handler' option in the configuration file to a string with the full name of your class.

Fix build. If we are logging to STDERR, we don't have to write to the filesystem anyway, so why checking?

(being respectful with occurences that might change the behaviour, i.e. default database prefixes)

Move SimpleSAML_Utilities::initTimezone() to SimpleSAML\Utils\Time::initTimezone(). Deprecate the former.

Reformat the logging classes. Extract the LoggingHandler to its own file. Add proper documentation. Fix typos.

PHP on Windows does not differentiate between all the different log
levels, which means that attempting to specify the 'logging.level'
option will not work properly. This patch replaces the use of the
syslog constants with custom constants.

Thanks to Ryan Panning for fixing this bug!

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2981 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2251 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1665 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1448 44740490-163a-0410-bde0-09ae8108e29a

Added options to configure processname for logging. Usefull when having multiple installations on the same machine.

Processname in the log is determined by the 'logging.processname' configuration key. It defaults to "simpleSAMLphp" if not set.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@667 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@610 44740490-163a-0410-bde0-09ae8108e29a

Adding a SIMPLESAML_INCPREFIX parameter before the inclusion of new files. This workaround was neccessary for university of oslo to make simplesamlphp work when ini_Set was not available.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@353 44740490-163a-0410-bde0-09ae8108e29a

Adding support for full paths outside the simplesamlphp installation. This patch was provided by Kenneth Svee! Thanks!

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@327 44740490-163a-0410-bde0-09ae8108e29a

renamed the logger class to follow the guidelines for classnaming. Also added some new log entries, and add an entry for SSO login statistics

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@297 44740490-163a-0410-bde0-09ae8108e29a

TrackID is always prepended to the logstring

New logging options in config-template.php

Possible to configure logging to use syslog or file

Please test the new logging function. 

Logging handler has only been added. The old logging function is still uses in the code. 

After test all logging calls should be rewritten to the new format.

Usage:

Required:

require_once('SimpleSAML/Logger.php');

Logging:

Logger::emergency("text to log");
Logger::critical("text to log");
Logger::alert("text to log");
Logger::error("text to log");
Logger::warning("text to log");
Logger::notice("text to log");
Logger::info("text to log");
Logger::debug("text to log");
Logger::emergency("text to log");

Logger::info(array("text","to","log"));

Statistics:
Stats are prepended with STAT in the logfile for easier analysis.

Logger::stats("SSO");

Example (syslog): 
Feb  7 21:02:33 server_name simpleSAMLphp[pid]: [trackid] loglevel text to log

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@268 44740490-163a-0410-bde0-09ae8108e29a