Bump version to 0.3.0

meson.build

@@ -1,4 +1,4 @@
-project('postprocessd', 'c', 'cpp', version: '0.1.2',
+project('postprocessd', 'c', 'cpp', version: '0.3.0',
     default_options : ['c_std=c11', 'cpp_std=c++11'])
 
 add_project_arguments('-D_GNU_SOURCE', language : 'c')