tinyxml2: update to latest version
fix typos
TCustomFarPlugin::GetOpenPanelInfo(): add checks
TCustomFarPlugin::GetOpenPanelInfo(): add checks
refactoring: UnicodeString.cpp
PUTTYMEM.h: do not use nb_calloc etc
version info: update
Merge branch 'master' into far3

* master:
  version info: update
  PUTTYMEM.h: do not use nb_calloc etc
  refactoring: UnicodeString.cpp
  TCustomFarPlugin::GetOpenPanelInfo(): add checks
  fix typos
  tinyxml2: update to latest version

Conflicts:
	src/NetBox/FarPlugin.cpp