Fix ArgumentError bug

Silently skip adding bad file names in scanner to a search list.

Fixes:

  https://wincent.com/issues/2154

Originally submitted at:

  https://github.com/wincent/command-t/pull/113

Except from original PR text:

  This bug appears when command-t encounters some files coming from
  cp1251 systems (e.g. cloned from perforce).

Signed-off-by: Greg Hurrell <greg@hurrell.net>
doc: Add Sherzod Gapirov to the AUTHORS section

Signed-off-by: Greg Hurrell <greg@hurrell.net>
Merge branch 'sherzodv/fix-badfname-error'

* sherzodv/fix-badfname-error:
  doc: Add Sherzod Gapirov to the AUTHORS section
  Fix ArgumentError bug

Signed-off-by: Greg Hurrell <greg@hurrell.net>