Quick re-style of the logout button in the settings
Change "Remember me" legend to "Keep me logged in", and implement it as
a customizable string.
Require that 403 response for faux login attempt includes X-SpiderOak-API
header.
Whoops!  Rectify fouled appStrings.json by clearing out the rest of the
only partially-removed "Customization instructions" entry.

This was blocking proper load of the appStrings file, causing undetected
lack of operation.

Also, add console.log() diagnostics to customizeStrings, to indicate
when (default and custom) strings files fail to load, including failure
details.
Replace the other incidences of "Remember me" text with the "Keep me
logged in" substitution, including the one in index.html, which requires
active DOM manipulation.
Make "Stay logged in" the default, per consensus.
Merge pull request #352 from SpiderOak/issue-326-recognize-server-characteristic

Require that 403 response for faux login attempt includes X-SpiderOak-API header.
Merge pull request #350 from SpiderOak/issue-338-move-logout-button

Move the logout button to the settings menu.
Tweak to the change to logging out
Provide for situation where the string table json files are not
accessible - ie, during testing, or if the json file arrangement is
changed or misplaced.

(I wish I could determine *how* this problem slipped by, before.)
Merge pull request #351 from SpiderOak/issue-346-keeploggedin-string

Change "Remember me" legend to "Keep me logged in", and implement it as a customizable string.
Merge branch 'master-ios-integration-branch' into issue-346-keeploggedin-string
... to prepare as much as possible for merge of
issue-346-keeploggedin-string into master-ios-integration-branch.

Resolved Conflicts:
	tpl/settingsViewTemplate.html
Fixes #373
Fixes #373
Merge pull request #372 from SpiderOak/issue-346-keeploggedin-string

Issue 346 keeploggedin string to master-ios-integration branch
Merge branch 'master' into master-ios-integration-branch-merge

Resolved Conflicts:
	tpl/menusheetTemplate.html
	www/css/themes/ios.css
Merge pull request #375 from SpiderOak/master-ios-integration-branch

Master ios integration branch to Master!
Make current: Merge branch 'master' into issue-227-login-backout
Inhibit posting an error dialog for interrupted authentication.