align restart of polling with last known event. It'll try to align with the last poll up to 2h (hardcoded). After that we assume that there is may be a sensor initialisation and restart polling immediately

- optimize Wakeup handling
- update to realm onChangeListener

- minor changes

swicth to lightgray graph color...

reduce poll interval to half in case of pump isn't near CNL

disable graph coloring at the moment

- enable touch an chat
- implement long click to zoom out (fit to screen)

* master:
  [Gradle Release Plugin] - new version commit:  'v0.5.0-SNAPSHOT'.
  [Gradle Release Plugin] - pre tag commit:  'v0.4.0'.
  Remove CareLink login code. Prepare for release.

- if pump ist near EOL (<= 25%) reduce polling. testing every 15mins