Update README. Fix import test.

Author: objecthub

README.md

@@ -72,6 +72,7 @@ _LispKit_ provides support for the following core features, many of which are ba
     [`(lispkit object)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Object),
     `(lispkit clos)`,
     [`(lispkit enum)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Enum),
+    `(lispkit comparator)`,
     `(lispkit logic)`, `(lispkit iteration)`,
     [`(lispkit vector)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Vector),
     [`(lispkit gvector)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Gvector),
@@ -146,6 +147,7 @@ framework:
   - [SRFI 161: Unifiable Boxes](https://srfi.schemers.org/srfi-161/srfi-161.html)
   - [SRFI 165: The Environment Monad](https://srfi.schemers.org/srfi-165/srfi-165.html)
   - [SRFI 173: Hooks](https://srfi.schemers.org/srfi-173/srfi-173.html)
+  - [SRFI 174: POSIX Timespecs](https://srfi.schemers.org/srfi-174/srfi-174.html)
 
 
 ## Architecture

Sources/LispKit/Resources/Libraries/lispkit/object.sld

@@ -201,7 +201,7 @@
   ;; Declarative class interface
   (export define-class)
 
-  (import (lispkit base))
+  (import (except (lispkit base) object))
 
   (begin
 

Sources/LispKit/Resources/Tests/Import.scm

@@ -37,6 +37,7 @@
 (import (lispkit datatype))
 (import (lispkit object))
 (import (lispkit enum))
+(import (lispkit comparator))
 (import (lispkit logic))
 (import (lispkit iteration))
 (import (lispkit set))
@@ -45,6 +46,7 @@
 (import (lispkit heap))
 (import (lispkit graph))
 (import (lispkit wt-tree))
+(import (lispkit stream))
 (import (lispkit prettify))
 (import (lispkit csv))
 (import (lispkit json))