Fix error logger; encoded urls would be cut off.  Instead just don't touch placeholders that have not been translated

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.

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

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@1665 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

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@586 44740490-163a-0410-bde0-09ae8108e29a