Fixed backtrace in error reports (#247)

* Fixed fonts

* Fixed assets

* Fixed logo in emails

* Switched to immediate email delivery

* Fixed prod emails and added deployment tasks

* Fixed deployments

* Updated README

* Added Bike Collectives Core to README

* Fixed issue with map loading

* Fixed issue with map loading

* Added map JSON data to assets precompilation

* Fixed error sending to conference administrators

* Let error report signature wrap

* Fixed backtrace in error reports

* Fixed backtrace in error reports

app/views/user_mailer/error_report.html.haml

@@ -2,7 +2,7 @@
 
 %h2 Error details
 %code.signature{class: "#{@report.source}-signature"}=@report.signature
-%code.backtrace{class: "#{@report.source}-backtrace"}=@report.backtrace.gsub(/\n\s+/, '<br>&nbsp;nbsp;').html_safe
+%code.backtrace{class: "#{@report.source}-backtrace"}=@report.backtrace.gsub(/\n+\s+/, '<br>&nbsp;&nbsp;').html_safe
 
 %h2 Request details
 .request-details