Request type with international characters in their name will break in some circumstances

When a request type is created with international characters in its name, those characters will find their way into the key for that request type. This causes problems in the edit fields screen due to URL character encoding insanity - see http://stackoverflow.com/questions/4028290/encoding-problem-between-jquery-and-java

We currently have a hack to get around this (see ServiceDeskURLDecoder.scala), but it only works if JIRA's server.xml has its URIEncoding set to ISO-8859-1 (Latin-1). This is the default, but the edit field screen is likely to break if it has been modified. The hack also doesn't help on IE8 and IE9.

We need a more general solution to handle this problem.