Add cache temp codes

	modified:   trace/net.sf.milkfish.systrace.android.core/src/net/sf/milkfish/systrace/android/core/util/PageTableHelper.java
	new file:   trace/net.sf.milkfish.systrace.core/src/net/sf/milkfish/systrace/core/cache/TraceLoader.java
Fix testcase

Fix HT system error

	new file:   lib/com.fasterxml.jackson.test/data/android_systrace.txt
	new file:   lib/com.fasterxml.jackson.test/data/nexusTrace
	modified:   lib/com.fasterxml.jackson.test/src/com/fasterxml/jackson/test/DummyTest.java
	modified:   trace/net.sf.milkfish.systrace.android.core/src/net/sf/milkfish/systrace/android/core/AndroidTrace.java