v20170909

• Add install documentation
• Add tab key navigation (desktop app), refs #43
• Disable Sentry in "debug" mode #64
• Add account deletion feature, refs #51
• Do not allow empty account password, refs #69
• Document testing, refs #62
• Fix account address on small screen, refs #75
• Fix account address not centered, refs #74
• Refresh account list after creation, refs #56
• Add global account selection control, refs #70
• Use upstream recipes, refs #28
• Toolbar title refactoring, refs #80
• Hide advanced account options, refs #53
• Show version in about, refs #46
• Fix rounding issues in "send" page