security/trousers:

• Update to 0.3.13.
• Remove CONFLICTS with emulators/tpm-emulator.
  
  Two separate binaries, sbin/tcsd (for actual TPM device) and sbin/tcsd_emu (for TPM emulator) are now installed. rc.d/tcsd chooses one of them depending on $tcsd_mode. When tcsd_mode="native" (default) it runs sbin/tcsd, and when tcsd_mode="emulator" it runs sbin/tcsd_emu. Note that sbin/tcsd_emu depends on tpmd in emulators/tpm-emulator.

• Simplify @sample.

emulators/tpm-emulator:

• Remove CONFLICTS with security/trousers.
• Simplify rc.d/tpmd.