Updated the tasks_completed-list.
Added a TODO item on the go for the FAILSAFE-STAGE.
* ReleasePressure: Returns the time it takes to release the pressure.
* Put releasePressure() and moveCylinderUntilHighPressureBecomes() together.
Changed the behaviour of the main cylinder potentiometer to accomplish the last specifications of timing and high pressure mode.
Added auxTimer variable.
* moveCylinderUntilHighPressure(): now writting the values to the outputs (dough! xD).
* Fixed a assignment at test mode.
Improved the debug output for releasePressure().
Getting the time it took to releaes pressure.
Moved some DEBUG_MODE output from loop() to releasePressure().
* FAILSAFE_STAGE:
  - Added a new substage.
  - Fixed the lack of a substage++ call.
* potM and potD values are float from now on.
* Tuned the drawer timing formula.
* Renamed panelArray to digitalInputs.
* New array: analogInputs.
* Now analog inputs keep the old value if the read value differ to the read value.
* Changing the name of the constant AMOUNT_ANALOG_SENSORS.
* Renaming panelArray to digitalInputs.
* readPanel(): Changing the way we read analog inputs.
Updating the TODO list.
Updating the notes at the beginning of the code.
Organizing the loop variables declared at the beginning of the code..
* Code clean up.
* Adding documentation.
* Renamed getActiveCylinder to getEnabledCylinder.