Redis/Jemalloc Gitignore were too aggressive.

Redis gitignore was too aggressive since simply broken.

Jemalloc gitignore was too agressive because it is conceived to just
keep the files that allow to generate all the rest in development
environments (so for instance the "configure" file is excluded).

.gitignore

 .*.swp
 *.o
-*.rdb
 *.log
-redis-*
+dump.rdb
+redis-benchmark
+redis-check-aof
+redis-check-dump
+redis-cli
+redis-sentinel
+redis-server
 doc-tools
 release
 misc/*

deps/jemalloc/.gitignore

@@ -2,24 +2,19 @@
 /config.stamp
 /config.log
 /config.status
-/configure
 /doc/html.xsl
 /doc/manpages.xsl
 /doc/jemalloc.xml
-/doc/jemalloc.html
-/doc/jemalloc.3
 /lib/
 /Makefile
 /include/jemalloc/internal/jemalloc_internal\.h
 /include/jemalloc/internal/size_classes\.h
 /include/jemalloc/jemalloc\.h
 /include/jemalloc/jemalloc_defs\.h
-/test/jemalloc_test\.h
 /src/*.[od]
 /test/*.[od]
 /test/*.out
 /test/[a-zA-Z_]*
 !test/*.c
 !test/*.exp
-/VERSION
 /bin/jemalloc.sh