Update plugin version to v1.0.2

Author: matrixik

logstash-output-monasca_log_api.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name = 'logstash-output-monasca_log_api'
-  s.version         = '1.0.1'
+  s.version         = '1.0.2'
   s.licenses = ['Apache-2.0']
   s.summary = 'This gem is a logstash output plugin to connect via http to monasca-log-api.'
   s.description = 'This gem is a logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/plugin install gemname. This gem is not a stand-alone program'