Util.getEllapsedSeconds, RepositoryHelper.getSimpleExtensionFilter

Util.getEllapsedSeconds, RepositoryHelper.getSimpleExtensionFilter,
deprecated PentahoParameterProvider
new packager grafted from cde, MinificationPackageTest disabled
use plugin name when determining plugin id, fallback to title
JAXRSCLPluginServlet: classloader-switching extension of JAXRSPluginServlet
UnifiedRespositoryAccess#listFiles default to depth 1 instead of infinity
removed old PentahoRepositoryAccess
PentahoLegacySolutionAccess#getLastModified: possible NPE
utils with jackson.JsonGenerator
SimpleJsonResult->JsonResult, -getEllapsedSeconds
PentahoInterPluginCall, EventPublisher base -> pho4