Version 0.1.1

Added check MySQLTuner exit code for prevent invalid requests to API
#5 was closed

Added -s option for the curl command to hide unnecessary output
#2 was closed

Fixed documentation and added check for JSON module
#6 was closed

Added old values to configuration file
#4 was closed

Fixed calculations of the innodb_buffer_pool_instances
#1 was closed

Added extended output on errors