The previous numbered format of the file made it difficult to determine which sections needed to be read depending on whether an issue report or a pull request was being submitted. This could make the task of reading the file look more daunting than it actually was.

Closes #3368

GitHub's note to read CONTRIBUTING.md during the issue creation process is a bit too easy to ignore. The text of the ISSUE_TEMPLATE.md file is added directly to the issue body text input field, making this note impossible to miss. It is hoped this will increase compliance with the Contributing Rules.

In menu Sketch/Include Library/ library types (Arduino|Recommended|Contributed) are not translated into selected «Editor language» although types are translated in .po files.

Fix #6815

Press A when on a scrollable menu for a 6x acceleration

Instead of forcing keywords.txt to use tabs, let library developers use spaces too.

This duplicates the entry, so now "Manage Libraries..." is available
in both under the "Tools" menu and inside the "Sketch" -> "Include
Library" menu.

The reasons for this change are:
  - It makes sense for the entry to be there
  - It makes easier for the user to click on the entry

Aditionally, I added a comment about a issue I found with the
newJMenuItemShift function on Xubuntu 17.04 regarding the Ctrl+Shift+K
shortcut.

Please note that this commit actually adds the shortcut to its menu
entry under the "Tools" menu.

As a side effect, the shortcut tip is only shown in this entry and not
on the another one.

Menu usually means the Ctrl key on most modern systems.

This commit adds the Menu+Shift+I shortcut to the remaining menu entry in Base.java.

When the shortcut is called, the menu entry from Base.java is the one that will be called.

This commit makes the Preferences dialog more usable by accessibility devices like screen readers.

Previously, a screen reader would only read the content of the text boxes. By using JLabel's setLabelFor() feature (and in some extreme cases, setAccessibleName()), a screen reader will know that a label is assigned to a text field. For example, instead of just reading "12", it will now read "Editor font size: 12".

Improve accessibility in the Preferences dialog

 "This example is written for a network using WPA encryption. For
 WEP or WPA, change the Wifi.begin() call accordingly."

…etInstalledLibraries()

Since we are now factory flashing obtiboot, 115200 is the new default upload speed. Adding a new entry to CPU menu is more explicit than adding an "upload speed" menu, and the bootloader path can be updated too.

Fixes https://github.com/arduino/Arduino/issues/4492

This reverts commit eed9e70.
See #6693

The checkboxes format previously used is confusing because the checkboxes can't actually be checked.

- Attempt to incorporate more of the content from:
  - https://github.com/arduino/Arduino/wiki/Development-Policy
  - #3368 (comment)
  - #3337 (comment)
- Fix typos
- Change example commit title to actually use imperative mode
- I interpreted @matthijskooijman's comment about rebasing as referring to squashing fixup commits rather than resolving merge conflicts and edited accordingly.

This serves as an introduction to the document.

The reference-en repository is now being used to generate the Language Reference pages. The Language Reference translation projects also seem to be progressing.

According to https://github.com/arduino/arduino-create/issues/1#issuecomment-351344954 the forum is the preferred location for Arduino Web Editor specific topics.

Add note to revisions.txt regarding new default Nano bootloader

Fixing SPI communication with a delay as pointe out in #6395

Update DigitalPotControl.ino

Repeated lines in sketch description

This reverts commit f7a395f.