API: .vertno -> .vertices
Merge pull request #1705 from christianbrodbeck/API/vertno

API: .vertno -> .vertices
ENH: specify ncov rank
Finalize #1709
Update whats new
Merge pull request #1711 from dengemann/enh_inv_ncov_rank

ENH: inv ncov rank
Add auto-reg code and a first example
more comments on method options
trim fixes nanmean
attempt to fix travis
fix attempt 2.6 py
more improvements to doc
improve example and address discussion
simplify API + example, update whitening example, speed up tests
cosmit
fix time slice + extend example
catch warnings
implement early stopping for PCA and FA
going over examples
preventing PCA and FA when projs are used