OPENNLP-1073: Add 1.8.0 relase news entry

closes apache/opennlp-site#19
diff --git a/src/main/jbake/content/news/release-180.ad b/src/main/jbake/content/news/release-180.ad
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+////
+   Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you 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.   
+////
+= Apache OpenNLP 1.8.0 released
+Apache OpenNLP
+2017-05-19
+:jbake-type: post
+:jbake-tags: community
+:jbake-status: published
+:category: news
+:idprefix:
+
+The Apache OpenNLP team is pleased to announce the release of version 1.8.0 of Apache OpenNLP.
+
+The Apache OpenNLP library is a machine learning based toolkit for the processing of natural language text.
+
+It supports the most common NLP tasks, such as tokenization, sentence segmentation, part-of-speech tagging, named entity extraction, chunking, parsing, and coreference resolution.
+
+The OpenNLP 1.8.0 binary and source distributions are available for download from our link:/download.html[download page].
+
+The OpenNLP library is distributed by Maven Central as well. See the link:/maven-dependency.html[Maven Dependency] page for more details.
+
+Java 1.8 is required to run OpenNLP Maven 3.3.9 is required for building it building from the Source Distribution.
+
+To build everything execute the following command in the root folder: `mvn clean install`
+
+The results of the build will be placed in: `opennlp-distr/target/apache-opennlp-1.8.0-bin.tar.gz` (or `.zip`)
+
+# What's new in Apache OpenNLP 1.8.0
+
+This release introduces many new features, improvements and bug fixes. The API has been improved for a better consistency and many deprecated methods were removed. Java 1.8 is required.
+
+Additionally the release contains the following noteworthy changes:
+
+- POS Tagger context generator now supports feature generation XML
+- Add a Name Finder feature generator that adds POS Tag features
+- Add CONLL-U format support
+- Improve default Name Finder settings
+- TokenNameFinderEvaluator CLI now support nameTypes argument
+- Stupid backoff is now the default in NGramLanguageModel
+- Language codes now are ISO 639-3 compliant
+- Add many unit tests
+- Distribution package now includes example parameters file
+- Now prefix and suffix feature generators are configurable
+- Remove API in Document Categorizer for user specified tokenizer
+- Learnable lemmatizer now returns all possible lemmas for a given word and pos tag
+- Lemmatizer API backward compatibility break: no need to encode/decode lemmas anymore, now LemmatizerME lemmatize method returns the actual lemma
+- Add stemmer, detokenizer and sentence detection abbreviations for Irish
+- Chunker SequenceValidator signature changed to allow access to both token and POS tag
+
+A detailed list of the issues related to this release can be found in the release notes.
+
+Thanks again to all contributors and committers for their help.
+
+--The Apache OpenNLP Team
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