Update mail_test.php

Prevent unauthenticated command execution
Update gpio_add.php

Prevent unauthenticated command execution
Update gpio_settings.php

Prevent unauthenticated command execution
Merge pull request #6 from bcoles/patch-1

Update mail_test.php
Merge pull request #8 from bcoles/patch-3

Update gpio_settings.php
Merge pull request #7 from bcoles/patch-2

Update gpio_add.php
add rpi onboard sensor to sensors
fix status for RPI onboard sensor & fix 85.0
fix after sec update
fix temp dev
remove security update because not work
add mobile view - only change font on mobile
fix gpio check - not checking all gpio if not set
add sort to RRD view
view settings fix day-hour
fix graph legend
Update readme.md
Fix for remove intergrated sensor, add humidity support DHT11, DHT22, add git update opction form web.
security fix
add perms to fix read button