Remove Positive/Neutral/Negative; add name attribute to Sentiment and regenerate the whole TypeSystem
* src/main/java/jgreg/internship/nii/AE/ArticlesDBDumpAE.java,
* src/main/java/jgreg/internship/nii/AE/SentimentAnnotator.java,
* src/main/java/jgreg/internship/nii/AE/SentimentStatisticsAE.java: Remove deprecated AE
* src/main/java/jgreg/internship/nii/Utils/Utils.java (readLines): Move to Utils

* src/main/java/jgreg/internship/nii/RES/StringListRES.java: use readLines from Utils
* src/main/java/jgreg/internship/nii/RES/Article.java: Remove Positive/Neutral/Negative stuff
* src/main/java/jgreg/internship/nii/AE/SentimentMatcherAE.java: Rename to SentimentFinderAE
* src/main/java/jgreg/internship/nii/AE/SentimentFinderAE.java: Use the new mapping mechanism to find sentiment

A file describing the mapping looks like:
<class name 1>;<filename>
<class name 2>;<filename>
...

The same class can have multiple entries, the patterns from every files will be combined to build the matcher for the class name.
* src/main/java/jgreg/internship/nii/App.java,
* src/main/java/jgreg/internship/nii/WF/Pipeline.java: Use the new SentimentFinderAE
Remove patterns files from the project