Add logo to read the docs (#936)

* Add logo to read the docs as HTML header.
* Lighten nav bar background so as to not clash with logo.

doc/conf.py

 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
+html_static_path = ['static']
+
 def setup(app):
     app.add_stylesheet('custom.css')
     app.add_object_type('generic', 'gen', 'pair: %s; generic')
@@ -9,10 +11,14 @@ extensions = ['sphinx.ext.todo', 'sphinx.ext.mathjax']
 source_suffix = '.rst'
 master_doc = 'index'
 
+html_logo = 'images/arbor-logo.svg'
+
 project = 'Arbor'
 copyright = '2017, ETHZ & FZ Julich'
 author = 'ETHZ & FZ Julich'
 todo_include_todos = True
 
 html_theme = "sphinx_rtd_theme"
-html_static_path = ['static']
+html_theme_options = {
+    'logo_only': True,
+    'style_nav_header_background': '#dfdcdf'}

doc/images/arbor-logo.svg

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Created with sK1 2.0rc3 (http://sk1project.net/) -->
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg" height="133.46145" viewBox="0 0 697.610161417 133.46145" width="697.610161417" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:xlink="http://www.w3.org/1999/xlink" id="svg2" xmlns:dc="http://purl.org/dc/elements/1.1/">
+
+<g>
+	<g>
+		<g>
+			<path style="fill:#000000;" d="M 297.309,43.887 L 297.309,47.9182 C 290.8168,43.6096 283.0785,41.0745 273.348,41.0745 249.766,41.0745 229.9496,60.887 229.9496,86.9456 229.9496,112.8323 249.766,132.9964 273.348,132.9964 283.0785,132.9964 290.8168,130.301 297.309,125.9768 L 297.309,131.1214 326.477,131.1214 326.477,43.887 Z M 279.2973,108.1565 C 267.4105,108.1565 258.5863,98.9964 258.5863,86.9456 258.5863,74.9143 267.4105,65.7542 279.2973,65.7542 285.598,65.7542 291.727,67.3674 297.309,73.4768 L 297.309,100.4299 C 291.727,106.5276 285.598,108.1565 279.2973,108.1565 Z" />
+			<path style="fill:#000000;" d="M 405.8988,42.012 C 392.9418,42.012 383.5746,46.1721 375.8246,52.8557 L 375.8246,43.887 346.4652,43.887 346.4652,131.1214 375.8246,131.1214 375.8246,80.7932 C 382.6684,74.094 391.6801,70.2971 405.8988,69.7542 Z" />
+			<path style="fill:#000000;" d="M 473.6957,42.012 C 464.1566,42.012 456.4184,44.5471 449.9262,48.6799 L 449.9262,3.5549 420.5668,3.5549 420.5668,131.1214 449.9262,131.1214 449.9262,126.344 C 456.4184,130.4768 464.1566,132.9964 473.6957,132.9964 497.2934,132.9964 517.1098,113.1956 517.1098,87.4299 517.1098,61.8284 497.2934,42.012 473.6957,42.012 Z M 467.9379,108.5081 C 461.6332,108.5081 455.3324,106.9221 449.9262,101.0745 L 449.9262,74.137 C 455.3324,68.2893 461.6332,66.6917 467.9379,66.6917 479.8246,66.6917 488.4691,75.7346 488.4691,87.4299 488.4691,99.4768 479.8246,108.5081 467.9379,108.5081 Z" />
+			<path style="fill:#000000;" d="M 577.2582,41.0745 C 549.5277,41.0745 529.1723,60.7112 529.1723,86.9456 529.1723,113.5471 549.5277,132.9964 577.2582,132.9964 604.8129,132.9964 625.1684,113.5471 625.1684,86.9456 625.1684,60.7112 604.8129,41.0745 577.2582,41.0745 Z M 577.2582,108.3323 C 565.0043,108.3323 556.8988,99.3479 556.8988,87.137 556.8988,75.2815 565.0043,65.7542 577.2582,65.7542 589.3207,65.7542 597.4262,75.2815 597.4262,87.137 597.4262,99.3479 589.3207,108.3323 577.2582,108.3323 Z" />
+			<path style="fill:#000000;" d="M 698.5551,42.012 C 685.598,42.012 676.2309,46.1721 668.477,52.8557 L 668.477,43.887 639.1215,43.887 639.1215,131.1214 668.477,131.1214 668.477,80.7932 C 675.3246,74.094 684.3363,70.2971 698.5551,69.7542 Z" />
+		</g>
+	</g>
+	<path style="fill-rule:evenodd;fill:#d86310;" d="M -0.0,104.3335 L -0.0,128.8477 206.25,128.8019 206.25,104.3793 -0.0,104.3335 Z" />
+	<path style="fill-rule:evenodd;fill:#000000;" d="M 123.0743,38.9667 C 124.1807,43.6075 125.184,48.3757 126.1542,53.1116 126.8825,56.6668 127.5788,60.0998 128.2763,63.5065 L 206.25,63.5761 206.25,39.0399 123.0743,38.9667 Z" />
+	<path style="fill-rule:evenodd;fill:#000000;" d="M -0.0,38.9667 L -0.0,63.5724 37.5531,63.5065 C 39.3818,57.5901 40.9032,49.2394 42.3468,40.8692 42.4569,40.2308 42.5634,39.6032 42.6709,38.9667 L -0.0,38.9667 Z" />
+	<path style="fill-rule:evenodd;fill:#a53c00;" d="M 80.3375,0.0 C 78.2692,-0.0024 76.1818,0.3203 74.154,1.062 67.6652,3.4356 64.1949,8.4858 62.0489,12.8485 57.757,21.574 56.5532,31.0568 54.9206,40.7446 53.2881,50.4325 51.5527,60.111 49.3359,65.9418 48.2322,68.8449 47.0132,70.6145 46.5545,71.0834 L -0.0,71.0834 -0.0,95.6305 46.8732,95.6305 C 53.4735,95.6305 59.9166,92.4921 64.0008,88.3576 68.0851,84.2231 70.4402,79.4787 72.2717,74.6613 75.9347,65.0265 77.504,54.4202 79.1217,44.8206 80.2045,38.3949 81.3269,34.8009 82.4377,30.6684 82.8868,31.6599 83.2976,32.1612 83.6975,33.382 85.8326,39.9005 87.8264,48.8334 89.7107,58.0316 91.595,67.2299 93.3924,76.7091 95.5243,85.0287 96.9512,90.5972 97.9248,95.5244 100.4114,100.2338 L 172.1008,100.2338 C 181.8871,97.2037 193.8478,96.2182 206.25,95.8264 L 206.25,71.1511 C 188.7469,71.4302 169.4332,72.7861 152.1606,82.0056 142.6185,87.0989 134.8762,90.7052 130.307,91.6663 125.7378,92.6274 125.714,92.7438 123.0267,89.9835 124.3726,91.366 121.1256,86.075 119.295,78.9313 117.4645,71.7876 115.6806,62.5167 113.7524,53.1043 111.8242,43.6918 109.7734,34.1484 107.0196,25.741 104.2659,17.3336 102.0021,9.3494 92.8656,3.7482 90.3018,2.1764 87.2478,0.9101 84.0216,0.3351 82.8118,0.1195 81.5785,0.0015 80.3375,0.0 Z" />
+</g>
+</svg>
\ No newline at end of file

doc/static/custom.css

@@ -32,6 +32,6 @@ table.docutils td {
 @media screen and (min-width: 40em) {
     .wy-table-responsive table td,
     .wy-table-responsive table th {
-	white-space: normal;
+        white-space: normal;
     }
 }