More detailed comment.

config/vufind/config.ini

@@ -175,23 +175,38 @@ session_name = VUFIND_SESSION
 
 ; Please set the ILS that VuFind will interact with.
 ;
-; Available drivers: Aleph, Amicus, ClaviusSQL, DAIA, Evergreen, Horizon (basic db
-;       access only), HorizonXMLAPI (more features via API), Innovative, Koha,
-;       KohaILSDI, LBS4, MultiBackend (to chain together multiple drivers in a
-;       consortial setting), NewGenLib, NoILS (for users without an ILS, or to
-;       disable ILS functionality during maintenance), PAIA, Polaris, Unicorn (which
-;       also applies to SirsiDynix Symphony), Virtua, Voyager (for Voyager 6+),
-;       VoyagerRestful (for Voyager 7+ w/ RESTful web services), XCNCIP2 (for XC
-;       NCIP Tookit v2.x)
-; Note: Unicorn users should visit the vufind-unicorn project for more details:
-;       http://code.google.com/p/vufind-unicorn/
-; Note: DAIA supports XML or JSON results (since release 2.4).
-;       For details look in the driver code and the corresponding ini file.
+; Available drivers:
+;   - Aleph
+;   - Amicus
+;   - ClaviusSQL
+;   - DAIA (using either XML or JSON API)
+;   - Demo (fake ILS driver returning complex responses)
+;   - Evergreen
+;   - Horizon (basic database access only)
+;   - HorizonXMLAPI (more features via API)
+;   - Innovative (for INNOPAC; see also Sierra/SierraRest)
+;   - Koha (basic database access only)
+;   - KohaILSDI (more features via ILS-DI API)
+;   - LBS4
+;   - MultiBackend (to chain together multiple drivers in a consortial setting)
+;   - NewGenLib
+;   - NoILS (for users with no ILS, or to disable ILS features during maintenance),
+;   - PAIA
+;   - Polaris
+;   - Sample (fake ILS driver returning bare-minimum data)
+;   - Sierra (basic database access only)
+;   - Symphony (uses native SirsiDynix APIs)
+;   - Unicorn (also applies to Symphony; requires installation of connector found at:
+;     http://code.google.com/p/vufind-unicorn/)
+;   - Virtua
+;   - Voyager (database access only; for Voyager 6+)
+;   - VoyagerRestful (for Voyager 7+ w/ RESTful web services)
+;   - XCNCIP2 (for XC NCIP Tookit v2.x)
 ;
 ; If you haven't set up your ILS yet, two fake drivers are available for testing
-; purposes.  "Sample" is fast but does very little; "Demo" simulates more
+; purposes. "Sample" is fast but does very little; "Demo" simulates more
 ; functionality of a real ILS but may slow down your system by performing extra
-; searches.  If you don't plan to use an ILS, the NoILS driver is your best option.
+; searches. If you don't plan to use an ILS, the NoILS driver is your best option.
 ;
 ; Note: Enabling most of the features in this section will only work if you use an
 ; ILS driver that supports them; not all drivers support holds/renewals.