Correct logfile max size.
Initial implementation of PlugIn API 1.11
Merge branch 's63'
Improve PlugIn API 1.11
Correct for improperly coded PP parameter in some BSB charts (FS#1251)
Correct PlugIn load location.
Finish nicely on SIGTERM, for example on system shutdown
Add Log message upon external shutdown and let the app finish completely.
Merge branch 'master' of https://github.com/OpenCPN/OpenCPN into mainline

Conflicts:
	include/chartdbs.h
	include/ocpn_types.h
	include/options.h
	include/pluginmanager.h
	include/s52s57.h
	include/s57chart.h
	src/chart/s52plib.h
	src/chart1.cpp
	src/chartdbs.cpp
	src/chartimg.cpp
	src/chcanv.cpp
	src/cm93.cpp
	src/options.cpp
	src/pluginmanager.cpp
	src/s52cnsy.cpp
	src/s52plib.cpp
	src/s57chart.cpp
Attribute initialization added.
bug fix: windows build