diff --git a/doc/doxygen/html/doxygen.css b/doc/doxygen/html/doxygen.css
deleted file mode 100644
index 0564e82..0000000
--- a/doc/doxygen/html/doxygen.css
+++ /dev/null
@@ -1,160 +0,0 @@
-H1 {
-	text-align: center;
-	font-family: Arial, Helvetica, sans-serif;
-}
-H2 {
-	font-family: Geneva, Arial, Helvetica, sans-serif;
-}
-CAPTION { font-weight: bold }
-DIV.qindex { width: 100%;
-             background-color: #eeeeff;
-             border: 4px solid #eeeeff;
-             text-align: center;
-             margin-bottom: 2px
-}
-A.qindex { text-decoration: none; font-weight: bold; }
-A.qindex:hover { text-decoration: none; background-color: #ddddff }
-A.qindexHL { text-decoration: none; font-weight: bold;
-             background-color: #6666cc;
-             color: #ffffff
-           }
-A.qindexHL:hover { text-decoration: none; background-color: #6666cc }
-A.qindexRef { text-decoration: none; font-weight: bold; }
-A.qindexRef:hover { text-decoration: none; background-color: #ddddff }
-A.qindexRefHL { text-decoration: none; font-weight: bold;
-             background-color: #6666cc;
-             color: #ffffff
-           }
-A.qindexRefHL:hover { text-decoration: none; background-color: #6666cc }
-A.el { text-decoration: none; font-weight: bold }
-A.elRef { font-weight: bold }
-A.code { text-decoration: none; font-weight: normal; color: #4444ee }
-A.codeRef { font-weight: normal; color: #4444ee }
-A:hover { text-decoration: none; background-color: #f2f2ff }
-DL.el { margin-left: -1cm }
-DIV.fragment {
-	width: 98%;
-	border: 1px solid #CCCCCC;
-	background-color: #f5f5f5;
-	padding-left: 4px;
-	margin: 4px;
-}
-DIV.ah { background-color: black; font-weight: bold; color: #ffffff; margin-bottom: 3px; margin-top: 3px }
-TD.md { background-color: #f2f2ff; font-weight: bold; }
-TD.mdname1 { background-color: #f2f2ff; font-weight: bold; color: #602020; }
-TD.mdname { background-color: #f2f2ff; font-weight: bold; color: #602020; width: 600px; }
-DIV.groupHeader { margin-left: 16px; margin-top: 12px; margin-bottom: 6px; font-weight: bold }
-DIV.groupText { margin-left: 16px; font-style: italic; font-size: smaller }
-BODY {
-	background: white;
-	color: black;
-	margin-right: 20px;
-	margin-left: 20px;
-}
-TD.indexkey { 
-   background-color: #eeeeff; 
-   font-weight: bold; 
-   padding-right  : 10px; 
-   padding-top    : 2px; 
-   padding-left   : 10px; 
-   padding-bottom : 2px; 
-   margin-left    : 0px; 
-   margin-right   : 0px; 
-   margin-top     : 2px; 
-   margin-bottom  : 2px  
-}
-TD.indexvalue { 
-   background-color: #eeeeff; 
-   font-style: italic; 
-   padding-right  : 10px; 
-   padding-top    : 2px; 
-   padding-left   : 10px; 
-   padding-bottom : 2px; 
-   margin-left    : 0px; 
-   margin-right   : 0px; 
-   margin-top     : 2px; 
-   margin-bottom  : 2px  
-}
-TR.memlist {
-   background-color: #f0f0f0; 
-}
-P.formulaDsp { text-align: center; }
-IMG.formulaDsp { }
-IMG.formulaInl { vertical-align: middle; }
-SPAN.keyword       { color: #008000 }
-SPAN.keywordtype   { color: #604020 }
-SPAN.keywordflow   { color: #e08000 }
-SPAN.comment       { color: #800000 }
-SPAN.preprocessor  { color: #806020 }
-SPAN.stringliteral { color: #002080 }
-SPAN.charliteral   { color: #008080 }
-.mdTable {
-	border: 1px solid #868686;
-	background-color: #f2f2ff;
-}
-.mdRow {
-	padding: 8px 20px;
-}
-.mdescLeft {
-	font-size: smaller;
-	font-family: Arial, Helvetica, sans-serif;
-	background-color: #FAFAFA;
-	padding-left: 8px;
-	border-top: 1px none #E0E0E0;
-	border-right: 1px none #E0E0E0;
-	border-bottom: 1px none #E0E0E0;
-	border-left: 1px none #E0E0E0;
-	margin: 0px;
-}
-.mdescRight {
-	font-size: smaller;
-	font-family: Arial, Helvetica, sans-serif;
-	font-style: italic;
-	background-color: #FAFAFA;
-	padding-left: 4px;
-	border-top: 1px none #E0E0E0;
-	border-right: 1px none #E0E0E0;
-	border-bottom: 1px none #E0E0E0;
-	border-left: 1px none #E0E0E0;
-	margin: 0px;
-	padding-bottom: 0px;
-	padding-right: 8px;
-}
-.memItemLeft {
-	padding: 1px 0px 0px 8px;
-	margin: 4px;
-	border-top-width: 1px;
-	border-right-width: 1px;
-	border-bottom-width: 1px;
-	border-left-width: 1px;
-	border-top-style: solid;
-	border-top-color: #E0E0E0;
-	border-right-color: #E0E0E0;
-	border-bottom-color: #E0E0E0;
-	border-left-color: #E0E0E0;
-	border-right-style: none;
-	border-bottom-style: none;
-	border-left-style: none;
-	background-color: #FAFAFA;
-	font-family: Geneva, Arial, Helvetica, sans-serif;
-	font-size: 12px;
-}
-.memItemRight {
-	padding: 1px 0px 0px 8px;
-	margin: 4px;
-	border-top-width: 1px;
-	border-right-width: 1px;
-	border-bottom-width: 1px;
-	border-left-width: 1px;
-	border-top-style: solid;
-	border-top-color: #E0E0E0;
-	border-right-color: #E0E0E0;
-	border-bottom-color: #E0E0E0;
-	border-left-color: #E0E0E0;
-	border-right-style: none;
-	border-bottom-style: none;
-	border-left-style: none;
-	background-color: #FAFAFA;
-	font-family: Geneva, Arial, Helvetica, sans-serif;
-	font-size: 13px;
-}
diff --git a/doc/doxygen/html/doxygen.png b/doc/doxygen/html/doxygen.png
deleted file mode 100644
index 96ae72c..0000000
--- a/doc/doxygen/html/doxygen.png
+++ /dev/null
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