* provides a optional-plugin for tracking ignores enhancement(#1203)
* trace ignore plugin config support override by system.env
* optimize the trace ignore plugin and make normalization of pom
* add AntPathMatcher and an junit test for it
* No longer rely on the spring framework
* add license at file header
* rebuild pom and rewrite README
* rebuild optional-plugins pom
* clean up useless code
* modify junit
* rewrite the ant path match logic
* rename the matcher class