FELIX-1708 Improve Error Reporting. The SCRDescriptorException now requires plain
messages and a source location and line number information. This can be used to
provide enhanced log messages with the Log interface (added signature for error
and warn messages with location and line information) and the IssueLog class. This
helps with non-Maven integrations supporting specialized logging if source and
line number information is present.

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@822249 13f79535-47bb-0310-9956-ffa450edef68
29 files changed