v5.6.4 - Minor maintanence update to cve-check-tool due to NVD changes - You MUST update to this release to continue using cve-check-tool! Note this is now the last release of cve-check-tool in the current 5.x series. Many requirements have begun to emerge of late, that the tool in it's current form does not serve. Consequently, cve-check-tool will be rebased upon libnica, to provide the core type/library functionalities. This will reduce complexity by proxying much development and testing to an isolated library. The remainder of the tools innards will be cleaned up, and "libraryfied" to form the basis of a cleanroom reimplementation of cve-check-tool. This will fix the limited scope issue to serve more needs, as well as drop old code and speed everything up, and add the long-awaited multiple data sources.