Updated Gzip and Gnuastro versions to standard builds

Both Gzip and Gnuastro were being bootstrapped personally from their Git
repository until now. But fortunately a new release of both came out last
week and so to make things standard we are now using their standard
tarballs.

I also noticed that we weren't checking the version of Gzip or mentioning
it in the acknowledgement section. This was also corrected.

1 files changed, 20 insertions, 20 deletions

diff --git a/paper.tex b/paper.tex
index 40a1f26..4d148e7 100644
--- a/paper.tex
+++ b/paper.tex
@@ -207,26 +207,26 @@ research (in alphabetical order): Bzip2 \bziptwoversion, CFITSIO
 \flockversion, Git \gitversion, GNU AWK \gawkversion, GNU Bash
 \bashversion, GNU Coreutils \coreutilsversion, GNU Diffutils
 \diffutilsversion, GNU Findutils \findutilsversion, GNU Grep \grepversion,
-GNU Libtool \libtoolversion, GNU Make \makeversion, GNU Sed \sedversion,
-GNU Scientific Library (GSL) \gslversion, GNU Tar \tarversion, GNU Wget
-\wgetversion, GNU Which \whichversion, Lzip \lzipversion, GPL Ghostscript
-\ghostscriptversion, Libgit2 \libgitwoversion, Libtiff \libtiffversion,
-OpenSSL \opensslversion, Pkg-config \pkgconfigversion, WCSLIB
-\wcslibversion, XZ Utils \xzversion, and ZLib \zlibversion. The final paper
-was produced with \TeX{} Live \texliveversion, using the following
-packages: \TeX{} \textexversion, EC \texecversion, NewTX \texnewtxversion,
-Fontaxes \texfontaxesversion, Keyval, \texxkeyvalversion, Etoolbox
-\texetoolboxversion, Xcolor \texxcolorversion, Setspace
-\texsetspaceversion, Caption \texcaptionversion, Footmisc
-\texfootmiscversion, Datetime \texdatetimeversion, Fmtcount
-\texfmtcountversion, Titlesec \textitlesecversion, Preprint
-\texpreprintversion, Ulem \texulemversion, Bib\LaTeX{} \texbiblatexversion,
-Biber \texbiberversion, Logreq \texlogreqversion, PGF/TiKZ \texpgfversion,
-PGFPlots \texpgfplotsversion, FP \texfpversion, Courier \texcourierversion,
-\TeX-gyre \textexgyreversion, TXFonts \textxfontsversion, Times
-\textimesversion. We are very grateful to all their creators for freely
-providing this necessary infrastructure. This research would not be
-possible without them.
+GNU Gzip \gzipversion, GNU Libtool \libtoolversion, GNU Make \makeversion,
+GNU Sed \sedversion, GNU Scientific Library (GSL) \gslversion, GNU Tar
+\tarversion, GNU Wget \wgetversion, GNU Which \whichversion, Lzip
+\lzipversion, GPL Ghostscript \ghostscriptversion, Libgit2
+\libgitwoversion, Libtiff \libtiffversion, OpenSSL \opensslversion,
+Pkg-config \pkgconfigversion, WCSLIB \wcslibversion, XZ Utils \xzversion,
+and ZLib \zlibversion. The final paper was produced with \TeX{} Live
+\texliveversion, using the following packages: \TeX{} \textexversion, EC
+\texecversion, NewTX \texnewtxversion, Fontaxes \texfontaxesversion,
+Keyval, \texxkeyvalversion, Etoolbox \texetoolboxversion, Xcolor
+\texxcolorversion, Setspace \texsetspaceversion, Caption
+\texcaptionversion, Footmisc \texfootmiscversion, Datetime
+\texdatetimeversion, Fmtcount \texfmtcountversion, Titlesec
+\textitlesecversion, Preprint \texpreprintversion, Ulem \texulemversion,
+Bib\LaTeX{} \texbiblatexversion, Biber \texbiberversion, Logreq
+\texlogreqversion, PGF/TiKZ \texpgfversion, PGFPlots \texpgfplotsversion,
+FP \texfpversion, Courier \texcourierversion, \TeX-gyre \textexgyreversion,
+TXFonts \textxfontsversion, Times \textimesversion. We are very grateful to
+all their creators for freely providing this necessary infrastructure. This
+research would not be possible without them.
 
 %% Tell BibLaTeX to put the bibliography list here.
 \printbibliography