Migrate the plug-in code

[FlorianLautenschlager]

We currently have some code in our sandbox that uses google guice to plug in additional functions.

[FlorianLautenschlager]

With the introduction of plug-ins we also have to extend / change the query language.

q=<query> & cf={<type>’{’<functions>’}’ [;<type>’{’<functions>’}’]}]

Therefore the next release has breaking changes.

[FlorianLautenschlager]

We plan to migrate the code soon after the FAST conference.

[FlorianLautenschlager]

With this issue we introduce new query params

• cf: Chronix Function replaces fq=function
• cj: Chronix Join replaces fq=join