Add "now" subcommand, as requested

[prjemian]

• close apsbss: add now() feature #1

Thanks, again, for the suggestion @decarlof!

[coveralls]

Pull Request Test Coverage Report for Build 12379241266

Details

• 80 of 195 (41.03%) changed or added relevant lines in 8 files are covered.
• 7 unchanged lines in 5 files lost coverage.
• Overall coverage decreased (-1.0%) to 64.423%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
apsbss/bss_dm.py	1	2	50.0%
apsbss/tests/test_server_interface.py	3	6	50.0%
apsbss/bss_is.py	5	9	55.56%
apsbss/tests/test_bss_dm.py	1	5	20.0%
apsbss/tests/test_bss_is.py	1	5	20.0%
apsbss/server_interface.py	5	31	16.13%
apsbss/core.py	43	79	54.43%
apsbss/apsbss.py	21	58	36.21%

Files with Coverage Reduction	New Missed Lines	%
apsbss/bss_dm.py	1	51.52%
apsbss/apsbss.py	1	36.51%
apsbss/bss_is.py	1	58.33%
apsbss/tests/test_apsbss.py	2	78.16%
apsbss/server_interface.py	2	29.05%

Totals
Change from base Build 12362850525:	-1.0%
Covered Lines:	1139
Relevant Lines:	1768

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💛 - Coveralls