Fix bug.

Revert "support  @RequestMapping annotation of spring 3.x"

support  @RequestMapping annotation of spring 3.x

* master:
  Change version for next iteration.
  add more special chars
  fix unit test
  fix Illegal group reference
  Update TraceSegmentServiceClient.java

fix Illegal group reference

Upstream log can't output correctly.

Support multi plugin defines targeting the same class. Relate to #402, but more than that. e.g. Enhance a class in the certain version library, but we need multi plugins to do so, like @clevertension ’s #465

Version change, 3.2.1 to 3.2.2

fixed #469

fix log encode issue and check style failured

because of remove the collection item action inside of collection for each action.

support jetty plugins

fix the operation name of spring mvc span is incorrect

Fixed #438, catch null point exception when collector start up with s…

rename configPath to config,support custom config file name.

Provide error and application query condition in trace stack UI.