Log Message:
Update to 6.2. From the changelog:

Merge pull requests:
pdewacht#107 Added DCP-7070DW; Thanks Jan Musinsky
pdewacht#133 Fixed MFC-7460DN; Thanks Peter Ye
pdewacht#169 Changed Code; Thanks Thomas Nixon

Added additional Brother printer entries:
HL-L5000D series
HL-L2370DN series
DCP-7070DW
DCP-8065DN

Errors Fixed:
Fix the ppd file name for the MFC-7460DN, changed from br7365dn.ppd to
br7460dn.ppd

Code Changes:
Explicitly disable duplex in PCL \033&l0S.

Issues Resolved:
The HL-L2350DW printer continued to duplex even when disabled, but every
other page was garbled. Thanks to Thomas Nixon for the fix.