Proper handling of exceptions from ElasticSearch
Proper handling of exceptions from ElasticSearch

- Do not start redis-stat if exception is thrown during startup
- Show ElasticSearch exception in both terminal and web view

brajput24/redis-stat,jerrysearch/redis-stat,junegunn/redis-stat,junegunn/redis-stat,taohaolong/redis-stat,brajput24/redis-stat,cheftestn/redis-stat,jerrysearch/redis-stat,taohaolong/redis-stat,jerrysearch/redis-stat,taohaolong/redis-stat,junegunn/redis-stat,cheftestn/redis-stat,cheftestn/redis-stat,brajput24/redis-stat