951231 - Systems Custom Information - Keyname and value should not
accept html characters < > /

routes controller was 404'ing on keynames with a '/' in them because it
was including that in part of the route instead of being the custom_info
keyname
System task checking caused duplicate task

Previously whenever you called system.tasks all tasks
from candlepin were duplicated within the db every time.
It was not checking properly that the tasks already existed.
Also the logic was confusing.  This should clear it up a good bit
Merge pull request #2784 from jlsherrill/system_tasks

System task checking caused duplicate task
Merge pull request #2781 from komidore64/custom-info-html-still

951231 - Systems Custom Information - Keyname and value should not accept html characters < > /