win32: update Inno Setup installer script and extensions list

contrib/win32/mercurial.ini

@@ -36,6 +36,7 b' editor = notepad'
 ;
 [extensions]
 ;acl =
+;blackbox =
 ;bugzilla =
 ;children =
 ;churn =

contrib/win32/mercurial.iss

@@ -62,7 +62,6 b' Source: contrib\\tcsh_completion; DestDir'
 Source: contrib\tcsh_completion_build.sh; DestDir: {app}/Contrib
 Source: contrib\hgk; DestDir: {app}/Contrib; DestName: hgk.tcl
 Source: contrib\xml.rnc; DestDir: {app}/Contrib
-Source: contrib\shrink-revlog.py; DestDir: {app}/Contrib
 Source: contrib\mercurial.el; DestDir: {app}/Contrib
 Source: contrib\mq.el; DestDir: {app}/Contrib
 Source: contrib\hgweb.fcgi; DestDir: {app}/Contrib
@@ -98,7 +97,6 b' Filename: {app}\\Mercurial.ini; Section: '
 
 [UninstallDelete]
 Type: files; Name: {app}\Mercurial.url
-Type: files; Name: {app}\Contrib\shrink-revlog.pyc
 
 [Icons]
 Name: {group}\Uninstall Mercurial; Filename: {uninstallexe}