Fix minify scripts help

minify-css.sh

@@ -5,7 +5,7 @@ if [ ! $(which index.js) ] ; then
     ERROR: minifier is not installed!
 
     Install it through npm:
-    npm install minifier
+    npm install --prefix ~ minifier
 
     Then, add it to the PATH:
     export PATH=\$PATH:~/node_modules/minifier
@@ -15,4 +15,4 @@ fi
 
 cd src/dgenies/static/css
 
-index.js -o dgenies.min.css dgenies.css
\ No newline at end of file
+index.js -o dgenies.min.css dgenies.css

minify-js.sh

@@ -7,7 +7,7 @@ if [ ! $(which babel.js) ] ; then
     ERROR: babel is not installed!
 
     Install it through npm:
-    npm install --save-dev babel-cli
+    npm install --prefix ~ --save-dev babel-cli
 
     Then, add it to the PATH:
     export PATH=\$PATH:~/node_modules/babel-cli/bin
@@ -21,4 +21,4 @@ babel.js -o dgenies.min.js --compact --minified dgenies.js dgenies.prototypes.js
 babel.js -o dgenies.result.min.js --compact --minified dgenies.result.js dgenies.result.controls.js dgenies.result.export.js dgenies.result.summary.js d3.boxplot.js d3.boxplot.events.js d3.boxplot.mousetip.js d3.boxplot.zoom.js
 babel.js -o jquery.fileupload.min.js --compact --minified jquery.fileupload.js jquery.fileupload-process.js jquery.fileupload-validate.js
 babel.js -o dgenies.run.min.js --compact --minified dgenies.run.js
-babel.js -o dgenies.status.min.js --compact --minified dgenies.status.js
\ No newline at end of file
+babel.js -o dgenies.status.min.js --compact --minified dgenies.status.js