[DS-1390] stage 1:  move license, email texts, news out of Configuration Manager.
Oops, missing license headers.
Clean up comments and unused imports.
getConfigurationFile cannot return null anymore.
IDE failed to refactor references embedded in JSPs.
Reintroduce factored-out methods as @deprecated wrappers, so we don't
break third-party code.

These should *not* be mirrored in ConfigurationService.
Manually re-merge UTF-8 changes lost in rebase.

See c4c493c4cfb1fcd8ef60b1e99529fc6770f58835.
See 802cce856f7bd0ec2f3272e49551c7ca6340e85c.
Merge pull request #213 from mwoodiupui/DS-1390

[DS-1390] stage 1: move license, email texts, news out of ConfigurationManager