Bump gradle, android api, and dependency version

Fix #8

Implement alerts from service, implement setup alert, #6

Fix #5: change accept-encoding header to 'identity' to prevent compre…

…ssion or modification

Hotfix for #1, log all data forwarded to xDrip, replaced hardcoded lo…

…cales (not the best way, but sufficient for now)

Fix #1

Implement support for mmol/l

Add option to forward values to xDrip+, add option to disable permane…

…nt notification, update README.md, update images, minor refactoring

Version 1.1.4

Fix date time format pattern