updates
[x0d] fixes respond-handler; was missing parameter in signature declaration
[plugins] director: default object caching to false, as it's still experimental.
update
[flow] adds support for VM suspend/resume. Closes #96.
refs #96. adds some test code for VM suspend/resume
[plugins] director: fixes crash
[http] HttpServer.requestHandler must always handle the request
[base] CustomDataMgr: adds overload to setCustomData() to allow assigning pre-allocated values
[x0d] some work towards VM suspend/resume-support for HTTP requests
[cmake] minor fix
[debian] adds 'idn' to the recommended packages list for x0d
[docs] x0d.8: document some missing command line arguments
[base] CustomDataMgr: fixes recently added setCustomData() to return the actual expected value
[flow] code cleanup
[flow] adds a new optimization pass to eliminate unused basic blocks
[flow] optimization improvements

- enables unused-block elimination pass (dead code elimination)
- adds constant-condition condbr folding
- adds branch-to-exit folding to reduce executed instruction count
[flow] minor code cleanup
[x0d] enable optimization level 1 by default
ChangeLog update