[ImgBot] optimizes images

[ImgBotApp]

Hey there. I've just optimized all of your images. They are the same dimensions and quality as before, only they take up less space now.

*Total: 5,236.61kb -> 4,409.40kb (15.8%)

\theme\static\img\coffee-cup.png -- 21.52kb -> 0.46kb (97.87%)
\theme\static\img\favicon.png -- 17.56kb -> 2.65kb (84.91%)
\theme\static\img\teacher\img-4.png -- 60.48kb -> 26.34kb (56.44%)
\theme\static\img\feature\img-2.jpg -- 29.79kb -> 26.80kb (10.04%)
\theme\static\img\blog\img1.jpg -- 61.05kb -> 38.28kb (37.3%)
\theme\static\img\gallery\img-1.jpg -- 40.96kb -> 39.49kb (3.59%)
\theme\static\img\teacher\img-5.png -- 72.78kb -> 35.41kb (51.34%)
\theme\static\img\footer-logo.png -- 20.44kb -> 2.55kb (87.51%)
\theme\static\img\blog\img2.jpg -- 73.88kb -> 52.37kb (29.11%)
\theme\static\img\gallery\img-2.jpg -- 29.16kb -> 28.19kb (3.33%)
\theme\static\img\teacher\img-6.png -- 63.41kb -> 26.94kb (57.52%)
\theme\static\img\logo.png -- 17.98kb -> 0.86kb (95.22%)
\theme\static\img\blog\img3.jpg -- 136.25kb -> 100.99kb (25.88%)
\theme\static\img\teacher\team-1.png -- 113.51kb -> 106.58kb (6.1%)
\theme\static\img\sponsors\logo-02.png -- 3.39kb -> 2.93kb (13.5%)
\theme\static\img\background\bg-1.jpg -- 133.69kb -> 124.53kb (6.85%)
\theme\static\img\sponsors\logo-03.png -- 19.70kb -> 4.32kb (78.07%)
\theme\static\img\gallery\img-5.jpg -- 42.17kb -> 41.38kb (1.86%)
\theme\static\img\pycon-logo.png -- 6.29kb -> 5.65kb (10.21%)
\theme\static\img\sponsors\logo-01.png -- 3.04kb -> 2.70kb (11.18%)
\theme\static\img\blog\p2.jpg -- 5.55kb -> 4.69kb (15.37%)
\theme\static\img\slider\bg-5.jpg -- 332.09kb -> 311.32kb (6.25%)
\theme\static\img\gallery\img-6.jpg -- 38.05kb -> 37.05kb (2.62%)
\theme\static\img\logo1.png -- 20.44kb -> 2.55kb (87.51%)
\theme\static\img\blog\p1.jpg -- 5.10kb -> 4.28kb (16.18%)
\theme\static\img\background\contact-bg.jpg -- 239.13kb -> 239.07kb (0.02%)
\theme\static\img\gallery\img-4.jpg -- 18.06kb -> 17.97kb (0.5%)
\theme\static\img\background\header-bg.jpg -- 60.55kb -> 58.95kb (2.64%)
\theme\static\img\marker.png -- 15.99kb -> 2.17kb (86.41%)
\theme\static\img\slider\bg-4.jpg -- 248.70kb -> 235.60kb (5.27%)
\theme\static\img\blog\p3.jpg -- 5.57kb -> 4.66kb (16.38%)
\theme\static\img\blog\img4.jpg -- 47.00kb -> 27.32kb (41.87%)
\theme\static\img\sponsors\logo-04.png -- 19.65kb -> 4.58kb (76.68%)
\theme\static\img\blog\bloglarge-1.jpg -- 176.57kb -> 148.58kb (15.86%)
\theme\static\img\teacher\img-2.png -- 64.87kb -> 45.28kb (30.2%)
\theme\static\img\blog\bloglarge-2.jpg -- 140.56kb -> 121.87kb (13.3%)
\theme\static\img\blog\p5.jpg -- 19.68kb -> 4.34kb (77.97%)
\theme\static\img\microphone.png -- 21.40kb -> 0.36kb (98.32%)
\theme\static\img\teacher\team-2.png -- 163.39kb -> 134.29kb (17.81%)
\theme\static\img\blog\user2.jpg -- 27.76kb -> 11.32kb (59.22%)
\theme\static\img\blog\p4.jpg -- 25.55kb -> 5.46kb (78.64%)
\theme\static\img\gallery\img-7.jpg -- 51.76kb -> 50.25kb (2.91%)
\theme\static\img\blog\img5.jpg -- 39.29kb -> 22.75kb (42.1%)
\theme\static\img\blog\img-2.jpg -- 29.79kb -> 26.80kb (10.04%)
\theme\static\img\blog\user3.jpg -- 30.79kb -> 12.15kb (60.55%)
\theme\static\img\blog\user1.jpg -- 38.72kb -> 12.67kb (67.27%)
\theme\static\img\blog\bloglarge-3.jpg -- 153.58kb -> 131.09kb (14.64%)
\theme\static\img\teacher\team-3.png -- 125.81kb -> 109.47kb (12.99%)
\theme\static\img\teacher\team-4.png -- 125.91kb -> 120.39kb (4.38%)
\theme\static\img\teacher\img-1.png -- 70.79kb -> 34.33kb (51.51%)
\theme\static\img\teacher\img-3.png -- 73.23kb -> 53.64kb (26.75%)
\theme\static\img\blog\img6.jpg -- 55.67kb -> 27.64kb (50.36%)
\theme\static\img\slider\bg-1.jpg -- 1,778.57kb -> 1,717.08kb (3.46%)