Fix DevBundleTest.testParseDevBundleLines on windows

org.junit.ComparisonFailure: expected:<[/some/interesting/]path> but was:<[C:\some\interesting\]path>
	at org.junit.Assert.assertEquals(Assert.java:115)
	at org.junit.Assert.assertEquals(Assert.java:144)
	at org.nuxeo.runtime.tomcat.dev.DevBundleTest.assertDevBundle(DevBundleTest.java:64)
	at org.nuxeo.runtime.tomcat.dev.DevBundleTest.testParseDevBundleLines(DevBundleTest.java:39)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)