Citation parser fails for OSHD cases

[flooie]

Full citation not understood. Still investigating but a number of citations have (page?)

See examples:

Metzler v. Arcadian Corp.  1997 OSHD (CCH) P31,311
CCH OSHD P 20,091 (1975)

[mlissner]

Fun one. See also this one about commas, in case there's a conflict of some kind #18.

[quevon24]

This has already been fixed in reporters-db, I just added it as a test case here: #189