Fixed namespace in installation instructions
Typo in UPGRADING.md

It should be `default_timezone` instead of `default_timzone`
Merge pull request #298 from biozshock/patch-1

Typo in UPGRADING.md
Update composer.json
Merge pull request #303 from blaugueux/patch-1

Update composer.json
fix typo in RegisterEventListenersAndSubscribersPass
make JMSDiExtraBundle dependency optional
Merge pull request #313 from lsmith77/make_di_extra_optional

make JMSDiExtraBundle dependency optional
removed in favor of repository configuration
updates version
Merge pull request #310 from i4got10/typo

fix typo in RegisterEventListenersAndSubscribersPass
Merge pull request #279 from mweimerskirch/patch-1

Fixed namespace in installation instructions
Added instructions to change the object constructor
Merge pull request #325 from pkruithof/patch-1

Added instructions to change the object constructor
Integrate serialization with the stopwatch
Merge pull request #334 from adrienbrault/stopwatch

Integrate serialization with the stopwatch
made previous commit compatible with older Symfony versions
small cs fix
composer is preinstalled, but just to be extra sure, lets update it to the latest version
Merge pull request #341 from lsmith77/patch-1

composer is preinstalled on travis