deprecations for v0.9
TST : fix test_label_in_src
FIX : get rid of plot_topo_tfr in exampl
FIX : remove induced_power in csd test
FIX : test_layout
Merge pull request #1520 from agramfort/deprecation_v0.9

MRG : deprecations for v0.9
FIX : fix _stc_to_label messed up
FIX: tfr preproc + plot
STY: Replace Fs by more standard sfreq
FIX: Deprecate Fs
DOC: update bug in whats new
update version