fix XSS vulnerability

updated to jsontree 0.1.7

closes #75
consider special indices all starting by _ or .
automatically display notification when index is created/deleted

closes #20
add http as default protocol if no protocol is found on location url

closes #78
improve shard stats on cluster overview

closes #73
added cluster name to cluster overview
fixes issue where initializing and relocating shards were not displayed

closes #9
ace editor service
rebased
deal with ES running on a different path than /

closes #85
display closed indices with different style

closes #84
release 0.5.2
Merge branch 'development'

Conflicts:
	dist/kopf.js
	es-plugin.properties
	package.json
	src/kopf/controllers/global.js
appends trailing / to location when requesting cluster status

this fixes issues for people who have ES behind a proxy

closes #85
added missing js source files to jshint
do not restrict rest client body to json

closes #87
apply closed index style for alias on cluster overview

closes #86
allow updating persistent cluster settings

closes #81
unit tests for elastic models against real ES

closes #26
moved cluster overview pages into folder