Adding note about outputs/elasticsearch/index requiring lowercase letters

ElasticSearch will refuse to create (without an error) any indexes that contain uppercase letters. Lowercase letters, numbers, and punctuation are permitted.
Update docs to point to the new, elasticsearch-hosted download
Add i18n filter with trasliterate support
Add `edn_lines` codec
Corrected syntax error in apache timestamp match in 10-minute-walkthrough
Merge pull request #828 from robin13/master

Corrected syntax error in apache timestamp match in 10-minute-walkthrough.
Thanks for making Logstash more awesome!
Merge pull request #697 from SpenserJ/patch-1

Adding note about outputs/elasticsearch/index requiring lowercase letters
Merge pull request #671 from jbochi/master

Add transliterate option to mutate filter

This looks great!  Thanks for making Logstash more awesome!
Merge pull request #827 from dakrone/add-edn-lines-codec

Add `edn_lines` codec.

lgtm. Thanks @dakrone, for making Logstash more awesome!
Merge pull request #741 from torrancew/docfix/broken_download_link

Update docs to point to the new, elasticsearch-hosted download

Thanks for making Logstash more awesome! :)
Merge pull request #826 from untergeek/master

Add automatic management of elasticsearch index mapping template (with option to disable)
Default template added to repo.
- make the edn_lines codec tests pass
Merge pull request #829 from jordansissel/fix-edn_lines-codec-tests

- make the edn_lines codec tests pass
Set 127.0.0.1 as the IP used in sending with gelf input tests.

Previously was 127.0.0.9, which isn't a typical 'localhost' address
found on machines.
Merge pull request #830 from jordansissel/fix-gelf-input-spec

Set 127.0.0.1 as the IP used in sending with gelf input tests.
Try to solve the 'multi ruby' problem in bundler by having each
ruby write to its own Gemfile.<ruby version>.lock file.
- Add Gemfile.jruby-1.9.lock
Merge pull request #831 from jordansissel/work-around-bundler

Work around bundler
Add two more gemfile.locks (ruby 1.9.3 and 2.0.0)

Yes. I know the file is named 1.9.1. I don't have time to explain! GET
IN THE CAR. LETS GO.
Merge pull request #832 from jordansissel/work-around-bundler

Add two more gemfile.locks (ruby 1.9.3 and 2.0.0)