update changelog for 1.1.5

fix spec/examples/parse-apache-logs failure due to QUOTEDSTRING not m…

…atching empty ""

- version bump

- compile for java 5 (1.1.2 was accidentally released compiled
  for java 7)

Update summary for 1.1.2

doc per option for docgen

hello logstash 1.1.1-rc1

latest jls-grok to fix LOGSTASH-300

- Don't hardcode the elasticsearch version in the output plugin

Merge branch 'master' into HEAD

bump version to 1.1.0beta8