CeylonTool: use ceylon.home system property rather than launcher util #750
Fix for #1412: record the error possitions

and do not generate class files for class defs that fall within an error range
Test for #1412: error in source file prevents binary generation for all declarations in the file
Updated test for c.l change
TestingToolLoader: do not include the current user's plugin scripts for #750
Updated test for #713 since we now allow overriding a single overloaded method
Fix for #1414: do not produce a compiler bug report when we hve typecehcker or java errors

errors that stem from ceylon code that doesn't typecehck are not bugs in the compiler,
because we reported errors for them and that's enough.
it's only a bug if we did not produce any error for ceylon or java source and we had
codegen errors
CeylonLog #1414: for some reason the error counting treated java errors in ceylon code as nonCeylon errors

And I suppose nonCeylon is only for java code
Now using OSUtil class instead of doing OS detections all over the place
Fixed Windows setup script (#750)
Properly execute Windows batch files (#750)
Fixed whitespace
Fix for #1415: handling of inner classes / overloaded constructors very broken
Disabled test for #1415: handling of inner classes / overloaded constructors very broken
model loader #1415: set the overloaded type's extended type to their abstraction
CeylonTool: do not set a system env if there's no value
Removed hyphen that shows up weird on the Windows command line
model loader: further to #1415: make sure we don't set up overloading for member objects
ModelLoadertest: removed an expected exception
Fixed redirection of output from script to the console for Windows (#750)