Fix issue causing bad quality atoms to be discarded
Fix issue causing bad quality atoms to be discarded

In certain regexps the only atoms that can be extracted are low quality ones, but a bad quality atom is always better than no atom at all. For some regexps those low quality atoms were being discarded and not used.

plusvic/yara,VirusTotal/yara,kallanreed/yara,cblichmann/yara,wxsBSD/yara,hillu/yara,hillu/yara,plusvic/yara,msuvajac/yara,rednaga/yara,VirusTotal/yara,VirusTotal/yara,pombredanne/yara,msuvajac/yara,kallanreed/yara,pombredanne/yara,rednaga/yara,MeteorAdminz/yara,msuvajac/yara,hillu/yara,wxsBSD/yara,wxsBSD/yara,VirusTotal/yara,jpypi/yara,tanium/yara,cblichmann/yara,VirusTotal/yara,pombredanne/yara,bmagistro/yara,cblichmann/yara,MeteorAdminz/yara,bmagistro/yara,cblichmann/yara,tanium/yara,hillu/yara,bmagistro/yara,pombredanne/yara,pombredanne/yara,kallanreed/yara,plusvic/yara,wxsBSD/yara,wxsBSD/yara,MeteorAdminz/yara,jpypi/yara,tanium/yara,hillu/yara,cblichmann/yara,plusvic/yara,jpypi/yara,rednaga/yara,plusvic/yara