Log Message:
Updated ham/gnuradio-* to 3.7.113.4

## [3.7.13.4] - 2018-07-15
### Fixed
#### Project Scope
- Fix Boost 1.67 linking issue
#### gnuradio-runtime

- Logging: fixed issues where messages weren't properly written to
  stdout/stderr due to incorrect strings

#### gr-analog
- `fmdet_cf`'s derivative coefficients were wrong.

#### gr-blocks
- `skiphead` used to incorrectly handle tags, now properly shifts

#### gr-digital
- `qa_packet_format`: Unit test used to potentially lock up due to
   incorrect condit ionals
- `clock_recovery_cc`, `crc32_bb`: Accessing the `[0]` element of an
   empty vector is UB, even if you don't use the result afterwards.

#### gr-fec
- `polar_encoder`/`_common`: Fixed multiple out-of-bound accesses due
   to insufficient vector length checks

#### gr-filter
- `fft_filter`, `filter_delay`: Accessing the `[0]` element of an
  empty vector is UB, even if you don't use the result afterwards.