Log Message:
Update textproc/groonga to 7.0.5. Add bl3.
Based on a PR by @siepkes (https://github.com/joyent/pkgsrc/pull/7).

Groonga 7.0.5
- [dump] --sort_hash_table option has been supported
- math_abs() function has been supported
- Ubuntu 16.10 (Yakkety Yak) support has been dropped

Groonga 7.0.4
- Supported Debian 9 (stretch)
- Added grndb log options
- Improved query performance

Groonga 7.0.3
- [select] Add document about Full text search with specific index name
- [load][dump] Supported Apache Arrow

Groonga 7.0.2
- Fixed a bug that data is lost by reindex
- Supported Ubuntu 17.04 (Zesty Zapus)
- Supported persistent cache
- Added function to use an existing table as condition patterns.

Groonga 7.0.1
- Dropped CentOS 5 support
- Fixed a problem about dynamically updated index size
- [experimental] Supported GRN_ORDER_BY_ESTIMATED_SIZE_ENABLE

Groonga 7.0.0
- Removed needless metadata updates on DB. It reduces the case that
  database lock remains even though select command is executed.
- lock_clear Changed to clear metadata lock by lock_clear against DB.
- Supported groonga-token-filter-stem package which provides stemming
  feature by TokenFilterStem token filter on CentOS 7.
- load Supported --output_errors yes option. If you specify "yes", you
  can get errors for each load failed record.

Groonga 6.1.5
- This release fixes an index search bug that index search may not
  return records that should be matched.

Groonga 6.1.4
- This release fixes an index search bug that index search may not
  return records that should be matched.

Groonga 6.1.3
- Reverted "Improved performance of updating inverted indexes in the
  worst case".

Groonga 6.1.2
- [load] Supported to show {"n_loaded_records": N} in response
- [load] Supported --output_ids yes parameter

Groonga 6.1.1
- Supported column value compression with Zstandard
- Changed to stop compressing small data

Groonga 6.1.0
- Supported to sort load table names by key instead of ID to make output
  stable
- Added document about index columns

Groonga 6.0.9
- Fixed index search bug
- Supported regular expression in location directive for groonga-httpd