DOC: my pass over mappers tutorial
Merge remote-tracking branch 'stick/master'

* stick/master:
  BF: Syntax error that degrades doctest performance.
  DOC: Split spatio-temporal SL in its own part.
  DOC: Minor doc polish
  DOC: Event-related modeling tutorial
ENH: rst2ipnbpy -- strict # doctest directives
DOC: minor tune ups to mappers tutorial
Merge branch 'master' of github.com:PyMVPA/PyMVPA

* 'master' of github.com:PyMVPA/PyMVPA:
  ENH+DOC:  Convert the majority of examples into IPython notebooks