Getting the project working again

Replace Twitter Bootstrap by Zurb Foundation
Used @import in SCSS instad of require_tree for proper order and use of variables like $debian_color
Moved old files out of the way (renamed them to xx*)
Welcome controller (/) works
Moved templates from ERB to SLIM format
Fixed database settings
Reduced routes to working ones
Tidied up Gemfile
Checked in experimental lab files

Tried to find a good description for this massive commit :)

public/images/sidebar/upload.svg

@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="35.65625"
+   height="35.65625"
+   id="svg4529"
+   version="1.1"
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+   sodipodi:docname="Neues Dokument 23">
+  <defs
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+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
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+     inkscape:pageshadow="2"
+     inkscape:zoom="6.6144898"
+     inkscape:cx="17.825888"
+     inkscape:cy="17.825327"
+     inkscape:document-units="px"
+     inkscape:current-layer="layer1"
+     showgrid="false"
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+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0"
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+     inkscape:window-height="464"
+     inkscape:window-x="938"
+     inkscape:window-y="455"
+     inkscape:window-maximized="0" />
+  <metadata
+     id="metadata4534">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Ebene 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-465.03125,-494.53125)">
+    <rect
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+       id="rect4443"
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+       height="34.528301"
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+       y="495.09802"
+       style="fill:#ffffff;fill-opacity:1;stroke:#888a85;stroke-width:1.1509434;stroke-miterlimit:4;stroke-dasharray:none;display:inline"
+       ry="6.0037479" />
+    <path
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+</svg>