Convert .hgignore to .gitignore

.gitignore

@@ -0,0 +1,2 @@
+/build
+/extension/version_auto.h

.hgignore

@@ -1,33 +0,0 @@
-syntax: regexp
-^build
-^extension/version_auto\.h
-^google-breakpad/android
-^google-breakpad/README\.ANDROID
-^google-breakpad/src/client/apple
-^google-breakpad/src/client/ios
-^google-breakpad/src/client/mac
-^google-breakpad/src/client/solaris
-^google-breakpad/src/client/windows/sender
-^google-breakpad/src/client/windows/tests
-^google-breakpad/src/client/windows/unittests
-^google-breakpad/src/common/android
-^google-breakpad/src/common/mac
-^google-breakpad/src/common/solaris
-^google-breakpad/src/common/testdata
-^google-breakpad/src/common/tests
-^google-breakpad/src/processor
-^google-breakpad/src/testing
-^google-breakpad/src/third_party/curl
-^google-breakpad/src/third_party/glog
-^google-breakpad/src/third_party/libdisasm
-^google-breakpad/src/third_party/linux
-^google-breakpad/src/third_party/protobuf
-^google-breakpad/src/tools/gyp/.*\.pyc$
-^google-breakpad/src/tools/gyp/samples
-^google-breakpad/src/tools/gyp/test
-^google-breakpad/src/tools/gyp/tools
-^google-breakpad/src/tools/linux
-^google-breakpad/src/tools/mac
-^google-breakpad/src/tools/python
-^google-breakpad/src/tools/solaris
-^google-breakpad/src/tools/windows