[FIXED JENKINS-20086] Allow disabling use of default exclude patterns (.git, .svn, etc.)
Added a convenience method.

Reference: https://trello.com/c/doFFMdUm/46-filepath-getcomputer
[FIXED JENKINS-21716] Set Content-Type header for env-vars.html
Merge pull request #1287 from nithril/master

[FIXED JENKINS-20086] Allow disabling use of default exclude patterns (.git, .svn, etc.)
Noting #1287

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>
Merge pull request #1302 from daniel-beck/JENKINS-21716

[FIXED JENKINS-21716] Set Content-Type header for env-vars.html
[maven-release-plugin] prepare release jenkins-1.570
[maven-release-plugin] prepare for next development iteration
updated changelog for release
updated changelog as a part of the release
merged back the RC branch
creating an RC branch
the trunk is toward 1.572-SNAPSHOT