* README: Initial user documentation (WIP)
* src/main/java/jgreg/internship/nii/AE/CitationContextExtractorAE.java: Set the CitattionContext id

* src/main/resources/jgreg/internship/nii/types/CitationSentimentAnalysisTS.xml: Add CitationContext ID

* src/main/java/jgreg/internship/nii/types/*.java: Regenerate jcasgen
renamed:    src/main/java/jgreg/internship/nii/AE/CitationContextExtractorAE.java -> src/main/java/jgreg/internship/nii/AE/CitationContextAnnotatorAE.java
* src/main/java/jgreg/internship/nii/AE/ExtractAllAE.java: Extract the CitationContext.ID
* src/main/java/jgreg/internship/nii/AE/CitationContextExtractorAE.java: Initial version

  Extract the required CitationContext and print Sentiment annotations.
* src/main/java/jgreg/internship/nii/AE/CitationContextExtractorAE.java:
  Get the outputDirectory from the configuration file
* src/main/java/jgreg/internship/nii/AE/CitationContextExtractorAE.java:
  Rename variable extractorConfig to config
* src/main/java/jgreg/internship/nii/AE/CitationContextExtractorAE.java:
  Rename parameter PARAM_CONFIGURATION_FILE to CONFIG_FILE
* src/main/java/jgreg/internship/nii/WF/CitationContextExtractorWF.java:
  The WF for the CitationContextExtractorAE
* src/main/java/jgreg/internship/nii/AE/CitationContextExtractorAE.java:
  Early check to avoid a NullPointerException