Krasimir says:
  Small fixes in the parser/printer. When there is a package description with
  executables only then the old implementation of pretty printer was written
  to print empty "exposed-modules" field while there isn`t any library. After
  that the parser will generate PackageDescription with (Just emptyLibrary)
  instead of Nothing. Now exposed-modules field is printed only if
  library /= Nothing

Ross says:
  In smartCopySources, don't try to strip the prefix if it was ".",
  because joinFileName "." x == x
  (fixes bug reported by Iavor Diatchki)

  Improve sdist a bit: copy files named in main-is, license-file and c-sources.
  Also supply a default Setup.hs if none is present.
  
  This will get it working for only the simplest of packages.  It omits
  header files, configure stuff and files named in the buildinfo file.
  To do it properly, we'd need a field in the package description listing
  extra files to copy into a source distribution.

some haddock fixes
updates to the manual (from ross):
  make copyright, maintainer and synopsis optional again.
  document required fields, plus a few assorted tweaks.

As described in message to libraries@, except that because of the way
the parser is structured, I can't check for an altogether missing
license.  Instead I warn if they say AllRightsReserved.

krasimir: {un}register.bat
ross: small doc fixes, and {un}register.bat docs
      added verbosity to defaultUserHooks

  Clean up parsing & pretty-printing.
  
  Most list fields now have consistent syntax:
  
    - commas are optional
    - each element of the list is either
  	- a sequence of one or more non-space non-comma characters
  	- a quoted string in Haskell 98 lexical syntax
  
  The build-depends field still requires commas, because the elements
  can contain whitespace.
  
  I merged fieldGet/fieldShow in StanzaField into a single field for
  simplicity.

  display some messages when verbosity > 0
  extraLibs and extraLibDirs were ignored when building for GHC

  Rename package description fields as in InstalledPackageInfo:
  
  	options-ghc -> ghc-options
  	options-hugs -> hugs-options
  	options-nhc -> nhc-options
  	extra-libs -> extra-libraries

  document syntax changes.
  
  Perhaps executable should be a token instead of freeform?

  installHugs: treat Main the same as other modules

  Clean up parsing & pretty-printing.
  
  Most list fields now have consistent syntax:
  
    - commas are optional
    - each element of the list is either
  	- a sequence of one or more non-space non-comma characters
  	- a quoted string in Haskell 98 lexical syntax
  
  The build-depends field still requires commas, because the elements
  can contain whitespace.
  
  I merged fieldGet/fieldShow in StanzaField into a single field for
  simplicity.

Fixed bug for ghc < 6.3 where call to ghc-pkg during configure step
was unconditional.  Now only call ghc-pkg to get versioned
dependencies if >= 6.3. revived buildDepToDep as setDepByVersion,
which sets the exact version number if supplied by the package
description in any case where we can't query the HC-pkg system.

minor fix to withHooks test for hugs

  Configure dependencies properly, by querying hc-pkg for the package list.

  We should pass the full package id (including version) to ghc now that
  we know it, not just the package name.

  buildHugs: use ppCpp (calling cpphs) instead of invoking cpp directly.

  Also removed the unused exeDependencies.

  Add --user flag to configure

  Doc setup configure --user/--global

  Minor doc tweaks

  Hugs only: use binary handles for copyFile

Found the following issues:
** install --user for hugs doesn't work at all

** install for hugs doesn't know the trick of checking in the library
   directory for other-modules while building an executable

** copyFile for hugs doesn't work on binaries?  I get an error about
   encodings during copy step when cross-installing GHC libraries with
   Hugs build.  This may mask other problems since its hard to test
   cross-installing.