core: raised version and updated changelog

Author: saghul

ChangeLog

@@ -1,3 +1,13 @@
+Version 3.0.0
+=============
+(changes since version 2.x)
+ - core: drop C backend in favor of CFFI
+ - core: drop Python < 3.5 support
+ - core: use None instead of -1 for default values
+ - core: add support for ANY queries
+ - core: automagically encode query names with IDNA
+ - core: add support for ares_search
+
 Version 3.0.0b5
 ===============
  - core: add support for ares_search
@@ -8,7 +18,6 @@ Version 3.0.0b4
  - test: add IDNA test using the query() API
  - cffi: simplify destroying ares channel
 
-
 Version 3.0.0b3
 ===============
  - core: reorganize package

src/pycares/_version.py

@@ -1,2 +1,2 @@
 
-__version__ = '3.0.0b5'
+__version__ = '3.0.0'