Fix: Wrong raven/raven version
Fix: Wrong raven/raven version

RavenHandler uses Raven_Client::user_context(). This method is available since 0.8.0.

see https://github.com/getsentry/raven-php/commit/7dd1fb3a353eb2b456336a996e5265fc5756a085

aeryaguzov/monolog,gencer/monolog,JCook21/monolog,oswaldderiemaecker/monolog,brendo/monolog,dracony/monolog,KevinMGranger/monolog,rap2hpoutre/monolog,Sgoettschkes/monolog,tavrij/test,deguif/monolog,mbrevda/monolog,cherrytech/monolog,thiagotalma/monolog,netgusto/monolog,localheinz/monolog,lyrixx/monolog,dailymotion/monolog,Seldaek/monolog,bd808/monolog,printerpam/monolog,prgTW/monolog,chinaweilu/monolog,webwlsong/monolog,pomaxa/monolog,dangnguyen27/monolog,entwu/monolog