BiasRep: removed duplicated operation
better metadynamics theory
Merge branch 'master' of github.com:plumed/plumed2
METAD: with interval faster gaussian support
add well-tempered metadynamics stuff.
Merge branch 'master' of github.com:plumed/plumed2
improved theory + typos
PLUMEDMAIN: new faster parser for plumed setup

This is the parsing I showed you in belfast
the metadynamics tutorial is in a decent form.
REM theory
Histogram: fixed bug with discrete and periodic cvs
reported by Omar
first example of Replica Exchange Tutorial
Exercise II REM
PTMetaD Exercise
add package for metadynamics tutorial
configure: inverted the order of the libraries liked with almost
this solution should be more general
NOE: write noe
PT-WTE and PTMetaD-WTE examples
added tarball for REM tutorial
Driver: removed a likely forgotten printf