update README and add NEWS
fixed #1 Support installation via Grape
change the version to 0.2.0
fixed #3 GProf fails to profile a multi-threaded application
fixed #4 Contains the time of children if the depth is more than two
update pom for new group ID and new site
fixed #2 Filtering by the name of a package, class and method
fixed #5 Filtering by the name of Thread
remove an unused demo
fixed a bug of matcher when using '*' wildcard
change vendor name and update groovy to 2.1.3
fixed #6 There are classes that are not profiled
fixed #2

fixed a problem when an excluded method include a method to be included
update NEWS
fixed #6 There are classes that are not profiled

use hidden property of ClassInfo instead
fixed #6 undo the part of the last change
merge develop branch