Minor release

This release contains bug fixes and a few enhancements, some listed below. See the ReleaseNotes.txt file for the full list.
03/12/2021: IPED-3.18.10
News:
#119: Create thumbnails for PDFs (Wladimir Leite & Luís Nassif)
#419: Create thumbnails for formats supported by LibreOffice (Wladimir Leite & Luís Nassif)
#809: Parse eMule part.met files (Wladimir Leite & Luís Nassif)
#615: Classify preferences.ini/AC_SearchStrings.dat and parse preferences.dat eMule artifacts (João Hauck, Luís Nassif & Wladimir Leite)
#852: Upgrade to ImageMagick-7.1.0-q8-x64 to fix animated webp images not being rendered (Luis Nassif)
#862: Upgrade to PDFBox 2.0.23 (Luís Nassif)
Fixes:
#793: Error in "Name" column when selecting some Regexes caused by IllegalArgumentException in 3.18.9 (Luis Nassif)
#848: NumberFormatException in Report Generation in 3.18.9 (Wladimir Leite)
#840: Invalid file Date causes export to ZIP feature to abort (Luis Nassif)
#791: 2nd level containers could be deleted from case folder when resuming with --continue (Luis Nassif)
#839: ConcurrentModificationException while creating bookmarks programmatically can stop bookmark saving (Luis Nassif)
#794: Aborting NullPointerException from NamedEntityTask not fixed (Luis Nassif & Wladimir Leite)
#805: Date values in unexpected fields could cause the processing to abort (Luis Nassif & Fábio Pfeifer)