Merge JesusFreke/smali#20 into fork / Fix building (2.0) on Windows

Merge JesusFreke/smali#20 into fork: Use System.lineSeparator() for cross-platform safe EOL handling in runTest(). The patch fixes failing build attempts (`org.jf.baksmali.AnalysisTest > DuplicateTest FAILED [junit.framework.ComparisonFailure at AnalysisTest.java:107]`) on Windows systems.