fixed file path correction under Cygwin64; fixed parameter detection issue in install-gwt script

configuration/correctFilePathInRelationToCurrentOs.sh

@@ -9,7 +9,12 @@ correct_file_path()
     fi
     
     if [ "$OSTYPE" == "cygwin" ]; then
-        echo $1 | sed 's/^\/cygdrive\/\([a-zA-Z]\)\//\1:\//'
+        echo $1 | grep -q '^/cygdrive/'
+	if [ "$?" = "0" ]; then
+            echo $1 | sed 's/^\/cygdrive\/\([a-zA-Z]\)\//\1:\//'
+        else
+	    echo "c:/cygwin64${1}"
+        fi
     elif [ "$OSTYPE" == "msys" ]; then
       echo $1 | sed 's/^\/\([a-zA-Z]\)\//\1:\//'
     else

configuration/install-gwt

@@ -1,6 +1,6 @@
 #!/bin/bash
 SAILING_GIT_ROOT="${1}"
-if [ -n ${2} ]; then
+if [ -n "${2}" ]; then
   OUTPUT_FOLDER_FOR_GWT_ZIP="${2}"
 fi
 GWT_VERSION=2.11.0
@@ -18,7 +18,7 @@ git clone https://github.com/axeluhl/gwt-maven-plugin.git -b ${GWT_VERSION}
 cd ${GWT_ROOT}
 ant clean dist-dev -Dgwt.version=${GWT_VERSION}
 cp build/dist/gwt-${GWT_VERSION}.zip ${GWT}
-if [ -n ${OUTPUT_FOLDER_FOR_GWT_ZIP} ]; then
+if [ -n "${OUTPUT_FOLDER_FOR_GWT_ZIP}" ]; then
   cp build/dist/gwt-${GWT_VERSION}.zip ${OUTPUT_FOLDER_FOR_GWT_ZIP}
 fi
 cd ${GWT}