Fixes and others (#83)

Features
-------------
Custom application name via APP_NAME docker env
(These next 3 are done with OCRMyPDF)
Extra features to OCR for scanned page cleanup (tilt/noise fixing)
Adding OCR ability to read and output to text file
Added Dedicated PDF/A conversion page 

Bug fixes
--------------
Fix concurrent calls on Libre and OCRMyPDF
jbig fix for compressions
Fix for compression metadata issues due to forced conversions to PDF/A


Other
--------
Removal of UK US language and just using "English" due to extra development time
Still issue with concurrent files for PDF to image... will fix later sorry

Dockerfile

@@ -36,6 +36,7 @@ RUN apt-get update && \
 		python3-pip \
         unoconv \
 		pngquant \
+		unpaper \
         ocrmypdf && \
 	pip install --user --upgrade ocrmypdf
 
@@ -49,10 +50,10 @@ COPY build/libs/*.jar app.jar
 EXPOSE 8080
 
 # Set environment variables
-ENV LOG_LEVEL=INFO
+ENV APP_NAME="Stirling PDF"
 
 # Run the application
-ENTRYPOINT ["java","-jar","/app.jar","-Dlogging.level=${LOG_LEVEL}"]
+ENTRYPOINT java -jar /app.jar