[Change] added scan_ignore_root oprion to exclude root owned files from find results
[Change] corrected persistence of custom signature files across signature updates and version upgrades
[Change] various corrections to conf.maldet, reworded some descriptions and modified default hexdepth to 64kb and hexfifodepth to 512kb
[Change] performed additional functionality testing of current 1.5 code to ensure LMD works as expected and encountered no issues