[NEW] [WIP] #4466 Port settings pages to Bootstrap (edit profile, edit account, privacy, services)

4886 auto add poll answer

last input field is only deleted if there are more than three input fields and the last one is empty

poll is validated only if the last input is empty, and the first three have been filled

Removed duplicate remove last answer.

Dont need to check that the last value is populated as we are ignoring last value

Fixing poll step

Placeholder text edited

Fixed translations for poll answer placeholder text

Removed numbers on publisher option

Removed numbers in placeholder for poll answers

Removed add option button

poll option can be added dynamically & last option removed if empty upon submission

Poll answer can be added dynamically by losing focus

poll option can be added dynamically & last option removed if empty upon submission

refractored to avoid repetition of publisher:sync event

poll option can be added dynamically & last option removed if empty upon submission

Added a missing semicolon

Set top margin only on the body element

Clarify explanations and defaults in diaspora.yml.example

added keyboard shortcut help topic

Feature/4474 fix lightbox thumbnails

Minor edit: Plural s