Added all of ARTist's changes to the current branch.

Author: sweisgerber-dev

.gitignore

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+.idea
+cmake-build-debug
 JIT_ART
 **/__pycache__/**
+make.sh

CHANGES.md

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+# Changes
+
+Short summary of the main changes. Execute `CHANGES.sh` for a detailed diff.
+
+## /compiler/oat_writer.cc
+
+- OatWriter::OatWriter
+    - Probe DexCheckSums
+    - Rewrite DexChecksums
+
+## /compiler/optimizing/optimizing_compiler.cc 
+
+- includes
+- adding HArtist Optimization passes
+
+## /dex2oat/dex2oat.cc
+
+Probing if DexLocationChecksum should get rewritten
+
+## runtime/base/logging.cc
+
+Replaced LogTag with dex2artist.gitignore
+
+## Changed/Touched Files
+
+compiler/Android.mk
+compiler/driver/compiler_driver.cc
+compiler/oat_writer.cc
+compiler/oat_writer.h
+compiler/optimizing/optimizing_compiler.cc
+dex2oat/dex2oat.cc
+runtime/base/logging.cc
+runtime/base/logging.h
+runtime/class_linker.h
+runtime/parsed_options.cc

CHANGES.sh

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+#!/bin/sh
+REVISION="12eb0c532e33ca5d5e98addd580b5ad0a4b71be4"
+echo ""
+echo "Branch differs by Commits: #" `git log --oneline $REVISION.. | wc -l`
+echo ""
+git diff $REVISION