Clean up save-RES, make button locations more consistent

Fixes #645, #646
Replace attributes with .data()

Made some other jQuery modifications/fixes
Fix Date(), which is not equivalent to new Date()
modules.styleTweaks.useSubredditStyleInDarkMode: do not automatically disable srstyle
Update jQuery to 1.10.2
Use Date.now() instead of new Date()
Use let instead of var for Firefox
Remove multiple var declarations by moving them to top
Enable Esc key for goMode dialog (fixes #664)
Fix a bug with the night-mode toggle in the Settings panel
Convert isDark into a function

This removes the hassle of changing both this.options.lightOrDark
and this.isDark
Slight fixes to style
Only set the option if RESStorage has been loaded
commentTools.options.macroPlaceholders (true): prompt user to fill {{placeholders}}
with stub for programmatic placeholders
commentTools.macroPlaceholders: special programmatic placeholders
and stubs for some future ones
.redditDark() -> .enableNightMode() and .disableNightMode()

.redditDark(true) looks like it enables night mode, when it actually
*disables* night mode
Use getElementById
Add instagram to toolbar exemptions
Nightmode tag bgColor hack

Give tags with a 'none' background colour, #666 in nightmode.
missing semicolon