* master: (109 commits)
mongodb_plugin: makesfiles update
mongodb_plugin: python README update
varnish_plugin: remove from conf file not ascii characters
elasticsearch_plugin: code optimization
create health directory in lib directory if it does not exist
disable streaming by default
better text
add mirrored hosts to the my-netdata menu
added comments and information at backends.c
netdata-installer.sh now uses apps.plugin -t option to test if it is capable of reading /proc files
added option -t to test if it has the permissions to read /proc/PID/io files
remove obsolete permissions fixup for apps.plugin from the makefiles; fixes #1789
re-arrange colors on CPU charts on freebsd; #1842
added twitter on README.md
web_log_plugin: requests per http version chart added
apps.plugin: added calls counter and isolatored file counter only to new files processed; #1827
mongodb_plugin: locks acquireCount charts added
updated configs.signatures
when not running as root, get the username we run as
fixed wrong name of old config option
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