Updated build and packaging scripts

- build.sh will use latest available Visual Studio compiler
- package.sh does some sanity checks

Author: gildor2

build.sh

@@ -9,7 +9,7 @@ if [ -z "$PLATFORM" ]; then
 	[ "$OSTYPE" == "linux-gnu" ] || [ "$OSTYPE" == "linux" ] && PLATFORM="linux"
 fi
 
-export vc_ver=10
+export vc_ver=latest
 
 # Build <platform> <type>
 function Build()

build/package.sh

@@ -1,5 +1,10 @@
 #!/bin/bash
 
+if [ ! -d "binaries" ]; then
+	echo "Please start \"buildall.sh\" before packaging."
+	exit 1
+fi
+
 # Extract version from zlib.h using grep and bash regexp
 ver=`grep ../zlib/zlib.h -e "#define ZLIB_VERSION"`
 [[ "$ver" =~ "\"(.*)\"" ]] && version=${BASH_REMATCH[1]}
@@ -43,3 +48,5 @@ Konstantin Nosov
 https://github.com/gildor2/fast_zlib
 http://www.gildor.org
 EOF
+
+echo "Now \"tmp\" directory contains data for zipping."