Log Message:
Update to 1.0.0:

* Version 1.0.0!  We are proud to present you with a thoroughly
  tested and stable version of the GPGME library.  A big Thank You!
  to all the people who made this possible.

  The development will be branched into a stable 1.x.y series and the
  head.

* The gpgme.m4 macro supports checking the API version.  Just prepend
  it to the required version string, separated by a colon.  For
  example, this release has the version "1:1.0.0".  The last release
  to which this version is (mostly) ABI compatible is "1:0.4.2",
  which is the default required version.