Remove artificial limitation of 10000 measurements for /boxes/:senseBoxId/data/:sensorId

[ubergesundheit]

• Limit from-date and to-date parameters to 1 month to match docs
• Remove artificial limit of measurements
• Maybe add arithmetic mean. This route is used for displaying measurements in the browser after all.
• Check if outlier detection clashes with arithmetic means..

@mpfeil your opinion?

[mpfeil]

Remove limits of from-date and to-date or limit it to 1 year.
Would be great to generate charts with a time frame of one year with monthly average data.

[mpfeil]

Maybe add arithmetic mean. This route is used for displaying measurements in the browser after all.

Right now all known methods of descriptive statistics are allowed.