Remove old test script, use FAKE instead

Also update help text for consistency with current behaviour

FSharp.AutoComplete/Makefile

@@ -1,9 +1,9 @@
 # Makefile for compiling and installing F# AutoComplete engine
 
-.PHONY: all clean unit-test integration-test test
+.PHONY: all clean integration-test test
 
 all: ~/.config/.mono/certs
-	xbuild FSharp.AutoComplete.sln
+	./fake build
 
 ~/.config/.mono/certs:
 	mozroots --import --sync --quiet
@@ -14,10 +14,7 @@ clean:
 	-rm -fr packages
 	-rm -rf test/unit/build
 
-unit-test: all
-	test/unit/runtests.sh
-
 integration-test: all
-	test/integration/runtests.sh
+	./fake integrationtest
 
-test: unit-test integration-test
+test: integration-test

FSharp.AutoComplete/Program.fs

@@ -104,9 +104,12 @@ module internal CommandInput =
       - quit the program
     declarations ""filename""
       - get information about top-level declarations in a file with location
-    parse ""<filename>"" [full]
-      - trigger (full) background parse request; should be
+    parse ""<filename>"" [sync]
+      - trigger full background parse request; should be
         followed by content of a file (ended with <<EOF>>)
+        Optional 'sync' is used to force the parse to occur
+        synchronously for testing purposes. Not intended for
+        use in production.
     completion ""<filename>"" <line> <col> [timeout]
       - trigger completion request for the specified location
     helptext <candidate>