Draft tutorial documentation
Sectioning of two tutorials
Started adding information for tutorial on dimensionality reduction
Finished creation of dimensionality reduction tutorial
Merge branch 'master' into belfast-tutorials
Added some text to tutorials
Added tutorial on Steinhardt parameters
Merge branch 'belfast-tutorials' of https://github.com/plumed/plumed2 into belfast-tutorials
Added details on trajectory to belfast-10 tutorial
Added links to videos
NOE: regtests
Using dgesdd rather than dgesvd for pseudoinverse

Fixes #89  Also added rt-make-4 regtests for Matrix class
Merge branch 'master' of github.com:plumed/plumed2
ContactMap: fixed components names
Fixed DUMPATOMS

Fixed DUMPATOMS gro file with > 100k atoms.
I do not add any regtest because it would need a very large
trajectory file.

Closes #93
Merge branch 'v2.0'

Conflicts:
	src/generic/DumpAtoms.cpp
changelog
Merge branch 'v2.0'
Fixed a couple of typos
Residual Dipolar Coupling CV.