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The Apache License Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0) applies except the following:
You may use the source code to build your own customized or free version of a plug-in. However you may not use the source code to publish a plug-in with the same or similar intended use.
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.