Aligned to guideline and path optimized Airbnb, Amazon, Authy, Badoo and Bitcoin. (#98)

* Visually centered a few icons, some new paths and optimizations.

Apple - Visually centered and change the path to more a accurate one.
Bytes: 1011 —> 580.

Dropbox - Visually centered and change the path to fix point alignment.
Bytes: 338 —> 350.

Twitter - Visually centered.
Bytes: 425 —> 431.

Ubuntu - Visually centered and change the path and color to a more
accurate one.
Bytes: 755 —> 674.

Vimeo - Visually centered.
Bytes: 375 —> 379.

WhatsApp - Visually centered and change the path and color to more a
accurate one.
Bytes: 646 —> 611.

Windows - Visually centered and change the path to fix the lines
between shapes.
Bytes: 274 —> 284.

Hope this helps.

FYI: Wikicommons have good SVG shapes and most companies have brand
guidelines with accurate logo renditions and colors.

* Removed newlines, fixed Ubuntu color and updated ReadMe and Twitter PNG.

* Twitter PNG Artifacts Fix.

* Optimizations and new color palettes.

Apple - New color palette that better represents the brand, and tiny
bit smaller.

Ubuntu - I keep finding ways to make this one smaller.

Wikipedia - New color palette that better represents the brand, and bit
smaller.

* Update

* Update drama

* Solving conflicts

* Solved conflicts.

* Optimizations and new color palettes

Apple - New color palette that better represents the brand, and tiny
bit smaller.

Ubuntu - I keep finding ways to make this one smaller.

Wikipedia - New color palette that better represents the brand, and bit
smaller.

* More Ubuntu optimizations.

Learning SVG as we go.

* Revert "More Ubuntu optimizations."

This reverts commit 74c1a45959.

* More Ubuntu Optimizations.

* Guidelines Folder.

* Guidelines.

Added guidelines with instructions.

* Revert "Guidelines."

This reverts commit eb30dfe163.

* Revert "Revert "Guidelines.""

This reverts commit 76edce25ec.

* Removed guidelines for small squares.

* Aligned to guideline and path optimized Airbnb, Amazon, Authy, Badoo and Bitcoin.

All were aligned accordingly and optimized to the following percentages:

Airbnb - 43%
Amazon - 0%
Authy - 38%
Badoo - 23%
Bitcoin + 1%

I’ll update Readme.

* Fixed Amazon radius. Whops.

images/svg/amazon.svg

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" aria-label="Amazon" role="img" viewBox="0 0 512 512"><rect width="512" height="512" fill="#f90" rx="15%"/><path fill="#fff" d="M293 184c-65 2-127 20-127 85 1 44 28 66 64 66 32 0 53-12 71-31 8 11 10 17 25 28 3 2 8 2 10-1l33-28c4-3 2-8 0-11-8-11-16-19-16-40v-67c0-28 2-54-19-73-17-16-39-21-64-22-56-1-92 29-97 65-1 6 4 9 7 9l39 6c6 1 9-5 10-9 6-23 30-29 45-24 21 7 19 30 19 47zm-38 109c-16 0-26-13-26-31 1-37 30-44 64-44v19c0 34-18 56-38 56zm175 111c14-11 27-40 26-59 0-8-1-9-8-11-14-4-48-5-65 11-3 3-2 5 1 5 12-2 47-6 52 2 5 7-8 36-12 49-2 5 2 6 6 3zM58 346c100 94 258 98 360 26 7-5 0-13-7-10-119 54-259 32-349-22-4-3-8 2-4 6z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" aria-label="Amazon" role="img" viewBox="0 0 512 512"><rect width="512" height="512" fill="#f90" rx="15%"/><path d="M283 187c-62 2-121 19-121 81 0 43 26 64 61 64 31 0 51-12 68-30 8 11 10 16 24 27 3 2 8 2 10-1l31-27c4-3 2-8 0-10-7-11-15-19-15-39v-64c0-27 2-52-18-70-17-16-38-20-62-21-53-1-88 28-93 62-1 6 4 9 7 9l37 5c6 1 9-4 10-8 6-22 29-28 43-23 20 6 18 29 18 45zm-36 105c-15 0-25-13-25-30 1-36 29-42 61-42v18c0 32-17 54-36 54zm168 106c13-11 26-38 25-57 0-7-1-8-8-10-13-4-46-5-62 10-3 3-2 5 1 5 11-2 45-6 50 2 4 7-8 35-12 47-2 5 2 6 6 3zM58 342c96 91 247 94 345 25 7-4 0-12-6-9a376 376 0 0 1-335-21c-4-3-8 2-4 5z" fill="#fff"/></svg>