[Java.Runtime.Environment] Use libjli.dylib on macOS, not libjvm.dylib (#198)

If you don't have the legacy Java 6 installed on macOS, then calling
`JNI_CreateJavaVM()` will result in a popup requesting you to install
the legacy Java 6 VM then abort, *even if* you call the
`libjvm.dylib` that's included as part of JDK8:

	**To open "this Java application" you need to install the legacy Java SE 6 runtime.**
	
	Click "More Info..." to visit the legacy Java SE 6 download website.
	
	[More Info...] [OK]

This is due to a [Java 8 bug][jdk7131356], and a
[suggested solution][jdkfix] is to instead use `libjli.dylib`.

[jdk7131356]: https://bugs.openjdk.java.net/browse/JDK-7131356
[jdkfix]: jpype-project/jpype#160

Update `JdkInfo.props` so that `$(JdkJvmPath)` uses `libjli.dylib`
instead of `libjvm.dylib`, removing the above warning dialog.

Author: akoeplinger

Configuration.Override.props.in

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <JdkJvmPath>/Library/Java/JavaVirtualMachines/jdk1.8.0_77.jdk/Contents/Home/jre/lib/server/libjvm.dylib</JdkJvmPath>
+    <JdkJvmPath>/Library/Java/JavaVirtualMachines/jdk1.8.0_77.jdk/Contents/Home/jre/jli/libjli.dylib</JdkJvmPath>
     <MonoFrameworkPath>/Library/Frameworks/Mono.framework/Libraries/libmonosgen-2.0.1.dylib</MonoFrameworkPath>
     <UtilityOutputFullPath>$(MSBuildThisFileDirectory)bin\$(Configuration)\</UtilityOutputFullPath>
   </PropertyGroup>

build-tools/scripts/jdk.mk

@@ -64,7 +64,7 @@ JI_JDK_INCLUDE_PATHS  = \
 	$(_DARWIN_JDK_ROOT)/$(_DARWIN_JDK_JNI_OS_INCLUDE_DIR)
 
 ifeq ($(_MONO_BITNESS),64-bit)
-JI_JVM_PATH	= $(_DARWIN_JDK_ROOT)/Contents/Home/jre/lib/server/libjvm.dylib
+JI_JVM_PATH	= $(_DARWIN_JDK_ROOT)/Contents/Home/jre/lib/jli/libjli.dylib
 endif # 64-bit
 
 else    # (1) failed; try Xcode.app's copy?