[Debug] Symfony debug extension
[Debug] a README for the debug extension
[VarDumper] algo to clone any PHP variable to a breadth-first queue
[VarDumper] symfony_debug ext. fast and memory efficient cloning algo
[VarDumper] add casters for per class/resource custom state extraction
[VarDumper] casters for exceptions representation
[VarDumper] casters for SPL data structures
[VarDumper] casters for PDO related objects
[VarDumper] casters for Doctrine objects
[VarDumper] casters for DOM objects
[VarDumper] interface for dumping collected variables
[VarDumper] CLI dedicated dumper and related abstract
[VarDumper] HTML variant of the CLI dumper
[VarDumper] tests for CliDumper
[VarDumper] tests for HtmlDumper
[VarDumper] README, LICENSE and composer.json
fixed typo
[DebugBundle] global dump() function for daily use
[DebugBundle] dump() + better Symfony glue
[DebugBundle] adjust after review