Update NEWS for 1.0.0 release

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

NEWS

     GTK VNC News
     ============
 
+Aug 7, 2019: Release 1.0.0
+==========================
+
+ o Autotools build system replaced with meson
+ o Support for GTK-2 is dropped. GTK-3 is mandatory
+ o Support for libview is dropped in example program
+ o Improvements to example demos
+ o Use MAP_ANON if MAP_ANONYMOUS doesn't exist to help
+   certai macOS versions
+ o Fix crash when connection attempt fails early
+ o Initialize gcrypt early in auth process
+ o Emit vnc-auth-failure signal when SASL auth fals
+ o Emit vnc-error signal when authentication fails
+ o Fix double free when failing to read certificates
+ o Run unit tests in RPM build
+ o Modernize RPM spec
+ o Fix race condition in unit tests
+ o Fix install of missing header for cairo framebuffer
+ o Fix typo in gir package name
+ o Add missing VncPixelFormat file to git data
+
+
 Aug 17, 2018: Release 0.9.0
 ===========================
 

meson.build

 project(
   'gtk-vnc','c',
-  version: '0.9.0',
+  version: '1.0.0',
   license: 'LGPLv2.1+',
   default_options: [
     'buildtype=debugoptimized',