Merge branch 'fix-48' into v2.0

CHANGES/v2.0.txt

@@ -18,9 +18,12 @@ In addition, it is now much easier to contribute new functionality to the code b
 - Developer and user documentation 
 
 Version 2.0.1 (unpublised yet, check out branch v2.0 on git repository)
+
 For users:
 - Several small fixes in documentation and log file
+- Fixed a bug in HISTOGRAM with REWEIGHT_BIAS. Reweighting was only done when also temperature-reweighing was enabled.
 - Added message when "plumed simpled" is used on a non-existing file
+
 For developers:
 - Several small fixes in documentation
 - Added possibility to setup replica exchange from MD codes in fortran (commands "GREX setMPIFIntercomm" and "GREX setMPIFIntracomm")