Update the location of the bjam docs in the documentation build.

[SVN r64245]

doc/Jamfile.v2

@@ -39,7 +39,7 @@ boostbook doc
     <dependency>../libs/date_time/xmldoc//gregorian_autodoc.xml
     <dependency>../libs/date_time/xmldoc//posix_time_autodoc.xml
     <dependency>../libs/date_time/xmldoc//local_time_autodoc.xml
-    <dependency>../tools/build/v2/engine/doc//bjam
+    <dependency>../tools/build/v2/doc//jam_docs
     <dependency>../tools/quickbook/doc//quickbook
     <dependency>../libs/interprocess/doc//autodoc.xml
     <dependency>../libs/interprocess/doc//interprocess
@@ -63,7 +63,7 @@ boostbook doc
     <implicit-dependency>../libs/proto/doc//proto
     <implicit-dependency>../libs/typeof/doc//typeof
     <implicit-dependency>../libs/xpressive/doc//xpressive
-    <implicit-dependency>../tools/build/v2/engine/doc//bjam
+    <implicit-dependency>../tools/build/v2/doc//jam_docs
     <implicit-dependency>../tools/quickbook/doc//quickbook
     <implicit-dependency>../libs/mpi/doc//mpi
     <implicit-dependency>../libs/interprocess/doc//interprocess