Fix error with 'edit_tape' utility not understanding new media types

Signed-off-by: Mark Harvey <markh794@gmail.com>
mhvtl.spec: Update for 1.5-2_release

 - Fix vtllibrary segfault using 'default' emulation
 - Correct slot mappings for L180/L700 emulation
 - Correct slot mappings for SL500 emulation
 - Increase max serial number length to 15 chars
 - More accurate emulation of IBM TS3100/3200 inquiry page bits

Signed-off-by: Mark Harvey <markh794@gmail.com>