[tutorial] some introductory words
[tutorial] add file create tutorial
[tutorial] add regularly sampled example
[tutorial] add some text the tutorials site
[tutorial] cleanup of regualy sampled example
[tutorial] add irregular sampled code
[tutorial] add picture of irregularly sampled data
[tutorial] add picture of regularly sampled data
[tutorial] improved plot of regular sampled data
[tutorial] add images to sphinx docu and extended textual descriptions of regualr and irregular examples
[tutorial] add some more text in tagging section
[tutorial] add copyright info to irregular data example
[tutorial] add copyright info to regular data example
[tutorial] example code for multiple time series
[tutorial] add multiple time series to tutorial.rst
[tutorial] add example for image storing
[tutorial] made other examples executable
[tutorial] add image data example to tutorial.rst
[tutorial] add stub for single ROIs example
fixed wrong docstring for block_create_tag