Update and cleanup ".gitignore".

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

.gitignore

@@ -1,38 +1,32 @@
 ABOUT-NLS
+
 Makefile
 Makefile.in
+Makefile.in.in
+Makevars
 aclocal.m4
-autom4te.cache/
 config.*
 configure
 depcomp
+install-sh
+missing
+stamp-h1
+autom4te.cache/
+m4/
+
+doc/*.1
 doc/*.html
 doc/*.pdf
-install-sh
-m4/
-missing
+
 po/*~
-po/Makefile
-po/Makefile.in
-po/Makefile.in.in
-po/Makevars
+po/*.gmo
+po/*.header
+po/*.sin
+po/*.sed
 po/POTFILES
 po/Rules-quot
-po/boldquot.sed
-po/de.gmo
-po/en.gmo
-po/en@boldquot.header
-po/en@quot.header
-po/es.gmo
-po/fr.gmo
-po/insert-header.sin
-po/nl.gmo
-po/quot.sed
-po/remove-potcdate.sin
 po/stamp-po
+
 src/*.o
 src/.deps/
-src/Makefile
-src/Makefile.in
 src/calcurse
-stamp-h1