Turned off building of plugins to OFF by default
Fixed namespace issue in various source files in source/conservation
Cleaning up calling convention for windows.
Fixed linker errors due to a change in an exporter macro
Ran tests - ok
Fixed a typo error in conservation/ConservedMoietyConverter.cpp
Merge pull request #16 from TotteKarlsson/plugin_changes

Turned off building of plugins to OFF by default
Merge pull request #17 from TotteKarlsson/msvc_fix

Fixed linker errors due to a change in an exporter macro
tweaks for gcc compile
ran Linux tests
merged develop changes