Fixes issue with exceptions in logs because we are trying to unbind from httpapplication events but you cannot do that.
Fixes issue with exceptions in logs because we are trying to unbind from httpapplication events but you cannot do that.

hfloyd/Umbraco-CMS,madsoulswe/Umbraco-CMS,mattbrailsford/Umbraco-CMS,mattbrailsford/Umbraco-CMS,bjarnef/Umbraco-CMS,tcmorris/Umbraco-CMS,tcmorris/Umbraco-CMS,tcmorris/Umbraco-CMS,abjerner/Umbraco-CMS,marcemarc/Umbraco-CMS,robertjf/Umbraco-CMS,KevinJump/Umbraco-CMS,JimBobSquarePants/Umbraco-CMS,dawoe/Umbraco-CMS,umbraco/Umbraco-CMS,dawoe/Umbraco-CMS,JimBobSquarePants/Umbraco-CMS,KevinJump/Umbraco-CMS,mattbrailsford/Umbraco-CMS,robertjf/Umbraco-CMS,tcmorris/Umbraco-CMS,abryukhov/Umbraco-CMS,arknu/Umbraco-CMS,KevinJump/Umbraco-CMS,leekelleher/Umbraco-CMS,JimBobSquarePants/Umbraco-CMS,abjerner/Umbraco-CMS,dawoe/Umbraco-CMS,marcemarc/Umbraco-CMS,robertjf/Umbraco-CMS,bjarnef/Umbraco-CMS,umbraco/Umbraco-CMS,bjarnef/Umbraco-CMS,dawoe/Umbraco-CMS,leekelleher/Umbraco-CMS,JimBobSquarePants/Umbraco-CMS,leekelleher/Umbraco-CMS,arknu/Umbraco-CMS,marcemarc/Umbraco-CMS,KevinJump/Umbraco-CMS,robertjf/Umbraco-CMS,abryukhov/Umbraco-CMS,umbraco/Umbraco-CMS,abryukhov/Umbraco-CMS,leekelleher/Umbraco-CMS,abryukhov/Umbraco-CMS,umbraco/Umbraco-CMS,bjarnef/Umbraco-CMS,marcemarc/Umbraco-CMS,arknu/Umbraco-CMS,tcmorris/Umbraco-CMS,mattbrailsford/Umbraco-CMS,tcmorris/Umbraco-CMS,hfloyd/Umbraco-CMS,abjerner/Umbraco-CMS,abjerner/Umbraco-CMS,hfloyd/Umbraco-CMS,robertjf/Umbraco-CMS,madsoulswe/Umbraco-CMS,dawoe/Umbraco-CMS,KevinJump/Umbraco-CMS,leekelleher/Umbraco-CMS,JimBobSquarePants/Umbraco-CMS,marcemarc/Umbraco-CMS,hfloyd/Umbraco-CMS,madsoulswe/Umbraco-CMS,hfloyd/Umbraco-CMS,arknu/Umbraco-CMS