Fix cert encoding issues
Fix cert encoding issues

Cert file reads were failing because they're UTF-8. This makes it
explicit.

artofhuman/vines,AliEn707/vines,AliEn707/vines,Zauberstuhl/diaspora-vines,negativecode/vines,artofhuman/vines,diaspora/vines,artofhuman/vines,Zauberstuhl/diaspora-vines,AliEn707/vines,Zauberstuhl/vines,Zauberstuhl/vines,negativecode/vines,diaspora/vines