code cleanup
added conserveMemory option to hide offscreen images in order to free memory from the browser. especially effective for heavy users of the 'view images' button. fixes #1303
added the notion of dependent options - options that are only visible if another option is true
adjusted usertagger's call to RESUtils.toggleButton due to a change in signature
added bufferScreens option to showImages
made use of dependent options in night mode module
made use of dependent options in betteReddit module
make use of option dependency in style tweaks module
make use of option dependency in user tagger module
Fix for color input in table option
Merge pull request #1312 from matheod/colorInputTable

Fix for color input in table option
add modmail hotkey m / shift-m to go to modmail
don't cut off the top when autoscrolling to options in console
Add hideModMail option

For user having an unused subreddit
Fix spelling
copy editing 'you were linked to an advanced option' alert
showImages: Ignore reddit.com for default module; fixes #1316

Regex also switched to use a non-capturing group.
settingsNavigation: Copyedit descriptions of options
console: Ensure that "Advanced options" text actually shows
css: Remove default margin attached to checkbox