Added new JRE classes to JreEmulation project.
	Change on 2013/01/12 by tball <tball@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41074298
Rollback EnhancedForStatement rewrite.
	Change on 2013/01/14 by kstanger <kstanger@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41120011
Added java.util.StringTokenizer.
	Change on 2013/01/14 by tball <tball@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41125081
2nd attempt after rollback.
Move EnhancedForStatement reconstruction to Rewriter so that it can benefit from additional translation passes.
In particular, this resolves an autoboxing issue.
	Change on 2013/01/14 by kstanger <kstanger@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41135217
Allow passing -X* arguments to java via j2objc script. This allows increasing the java heap size and remote debugging, among other things. Makefiles can provide these arguments via the J2OBJC_DEBUGFLAGS variable.
	Change on 2013/01/21 by iroth <iroth@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41440373
Fixed JRE library's ARC build.
	Change on 2013/01/22 by tball <tball@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41465390
Fixed Throwable.toString and printStackTrace to show cause.
	Change on 2013/01/22 by tball <tball@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41465460
Always import the return type of a method invocation.
	Change on 2013/01/25 by kstanger <kstanger@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41628462
Added -begin-java-args and -end-java-args to j2objc.sh.

The previous attempt to pass arguments to java filtered out arguments beginning with -X. This approach doesn't always work because:
1. there are some java arguments that don't begin with -X
2. there are some j2objc arguments that do begin with -X
	Change on 2013/01/29 by iroth <iroth@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41810042
Some cleanup of the jre_emul makefile.
Replaces usage of find with more explicit dependency lists.
	Change on 2013/01/30 by kstanger <kstanger@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41834808
Fixed sizeof expression in IOSLongArray.
	Change on 2013/01/31 by tball <tball@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=41899991
Merge branch 'master' of https://code.google.com/p/j2objc