add jekyll files to .gitignore
Delete _config.yml
Delete index.html
smal typo update for README.md
Merge remote-tracking branch 'origin/master' into gh-pages
Merge remote-tracking branch 'origin/master' into gh-pages
add headers to the script

and made some script a bit more robust
small update to checkpower

voltage level for low warning level was too LOW
Merge remote-tracking branch 'origin/gh-pages'