Now it is possible to choose the start date for the data collection
Now the data is stored in a different way and the way we read data
is also different. Now the user can only choose to store data from build
flows and can only read data from jobs that have data stored. However,
now we store data even if we already have stored it in older
invocations. This has to be changed so that we donot get any dublicates.
We also just read all data for presentation and ignore user options of
time period. This will be imnplemented in later commits.
Improved UI
Now I don't use the useless DOM parser, instead a just write to the file
manually, which actually was way easier. Still some memory problems with
the script though.