st: Add builtInput for pkgconfig

During the build process st fails to find pkg-config. This does not throw a fatal error but it should be included during build time.
UID/GID fix for kippo
noweb: some fixes

install libs to $out/lib/noweb
don't sed on binaries, eg markup
notbit: Add Package
add pythonPackages.dropbox
apcupsd: Description -> description
systemd: Allow customisation of upstream units

You can now say:

  systemd.services.foo.baseUnit = "${pkgs.foo}/.../foo.service";

This will cause NixOS' generated foo.service file to include
foo.service from the foo package.  You can then apply local
customization in the usual way:

  systemd.services.foo.serviceConfig.MemoryLimit = "512M";

Note however that overriding options in the original unit may not
work.  For instance, you cannot override ExecStart.

It's also possible to customize instances of template units:

  systemd.services."getty@tty4" =
    { baseUnit = "/etc/systemd/system/getty@.service";
      serviceConfig.MemoryLimit = "512M";
    };

This replaces the unit options linkTarget (which didn't allow
customisation) and extraConfig (which did allow customisation, but in
a non-standard way).
getty@ and autovt@: Use the upstream units
Don't include superfluous lines in generated units
Don't depend on the text of disabled units

This prevents pulling in unnecessary dependencies.
switch-to-configuration: Don't try to start masked units
Fix kmscon evaluation
set all licenses to be attributes (and wait for Nix 1.7)
lighttpd: bump 1.4.34 -> 1.4.35 (security fixes)

From http://www.lighttpd.net/:

  Important changes
  -----------------
  This release contains a lot of bug fixes, many detected by scan.coverity.com
  (and more to come). The main reason for the release is a fix for an SQL
  injection (and path traversal) bug triggered by specially crafted (and
  invalid) Host: headers.

  Security fixes
  --------------
  http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2014_01.txt (no CVE yet)

NOTE: We (nixpkgs) currently don't build the mod_mysql_vhost module mentioned
above.
lighttpd: add enableMysql option, to build 'mod_mysql_vhost'

Now we have options to build all available modules/plugins.
New package: winstone 0.9.10, a Java Servlet container
New NixOS module: services.winstone, for running instances of the Winstone Java Servlet container
New package: solr 4.7.0, a Java search platform
winstone NixOS module: Make it possible to set systemd service name
pythonPackages.gevent-socketio: add