Bump version number

In preparation for a release, bump to "pre" version.
Rewritten Yandex documentation page

Adds available languages and discusses the European accent vs choosing
a service like Google.
Expand service aliases

Adds several aliases both for services that have less-than-intuitive
names (e.g. SVOX) and also so that any link text used on the website is
also workable as a service, even if that may not be the official service
name.
Release of v1.2.0

This release adds two new TTS services, user-defined presets, side-click
menu functionality, templating improvements, and some bug fixes.

- adds Howjsay (English words and short phrases)
- adds ImTranslator (Windows and Linux only; Chinese, English, French,
  German, Italian, Japanese, Korean, Portuguese, Russian)
- adds eSpeak voice variant support (e.g. male, female)
- adds support for nesting TTS tags in card templates
- adds ability to save and recall TTS services as "presets"
- adds AwesomeTTS functionality to side-click menus: play selected text,
  activate on-the-fly playback in review mode, test on-the-fly tags in
  the template editor
- moves AwesomeTTS menu in the card browser to a top-level menu
- fixes eSpeak support for Mandarin
- fixes right-to-left language display of the "Preview and Record" input
  box in the note editor's single MP3 generator
- improves performance for users with many custom text substitutions
- avoids a crash if user uninstalls local TTS software while AwesomeTTS
  is running
- avoids a crash if user enables logging inside a non-ASCII path

(Merge branch 'pre/v1.2.0' into stable)
Merge branch 'stable' into develop

Brings in the pre-release changes into the mainline development branch.

Conflicts:
	addon/awesometts/__init__.py