Add spring-build 2.5.2

spring-build was previously included via an svn:external. Adding
directly to the source tree under Git to avoid the need for a git
submodule.

In order to build from any earlier commit, it is recommended to
export spring-build or symlink an existing copy into the root
of the spring-framework project and then build normally.

    $ svn export https://src.springsource.org/svn/spring-build/tags/project-build-2.5.2 spring-build

spring-build/lib/ivy/current.version

@@ -0,0 +1,20 @@
+# Copyright 2010 SpringSource
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+ivy.jar=								2.1.0
+org.springframework.build.aws.ivy.jar=	1.0.8.RELEASE
+commons-codec=							1.3.0
+commons-httpclient=						3.1.0
+commons-logging=						1.1.1
+jets3t=									0.7.0

spring-build/lib/ivy/jets3t.properties

@@ -0,0 +1,26 @@
+# Copyright 2010 SpringSource
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+## JetS3t Configuration Properties
+
+# A full description of all configuration properties can be found at
+# http://jets3t.s3.amazonaws.com/toolkit/configuration.html
+
+# Proxy configuration
+httpclient.proxy-autodetect=true
+#httpclient.proxy-host=
+#httpclient.proxy-port=
+#httpclient.proxy-user=
+#httpclient.proxy-password=
+#httpclient.proxy-domain=