docs(translateService): documents translate service usage with event handlers

Fixes #200
docs(*): adds docs for shortcuts and links
docs(translateService): fixes typo
docs(guide/ru): Use $translateChangeSuccess event with $translate service
docs(guide/uk): Use $translateChangeSuccess event with $translate service
Merge pull request #240 from DWand/cyr-translations-support

Ru/uk translations support (Use $translate successEvent with $translate service)
add English documentation for multiple fallback languages
add German translation for multiple fallback languages
docs(guide/ru): Shortcuts and links
docs(guide/uk): Shortcuts and links
Merge pull request #241 from DWand/cyr-translation-support-shortcuts

Ru/Uk translations support: Shortcuts and links
Merge pull request #242 from tspaeth/canary

Documentation update for multi-fallback languages
docs(guide/uk): Translation support multi-fallback
docs(guide/ru): Translation support multi-fallback
Merge pull request #243 from DWand/cyr-translations-support-multi-fallback

Uk/Ru translations support: multi-fallback
test(loaders): Repairs tests for fallbackLanguage + async loading

Fixes some logical mistakes
Merge pull request #247 from DWand/fix-fallback-language-loading

Tests fixes for fallback languages asynchronous loading
chore(landingPage): adds jhipster
Merge branch 'canary' of github.com:PascalPrecht/angular-translate into canary
fix(fallbackLanguage): Fix fallback languages loading and applying