i18n 6.x-1.0-beta2

Lots of bug fixes and some new features, full changelog:
- Better icon for Arabic, by Afief, #278140
- Added back i18nviews module for views specific features
- Fixed languageicons occassional warning, by eMPee584, #276161
- Commented out views hooks on i18ntaxonomy (not for the first version), #285660
- Fixed wrong duplicated translations (context/caching issue), #281471
- Added preliminary support for l10n client (Patch pending)
- Fixed missing dependency on i18nblocks, #279769
- Fixed i18npoll_nodeapi returning $node, breaking feeds and cron calls, #254022
- Fixed notice and possible i18n blocks not found, #278588
- Fixed node upgrade issue, #260626
- Removed references to obsolteted function i18n_get_normal_path(), #259603
- Wrong link and typos in taxonomy module, by AaronCollier, #259440
- Added Thai flag, by kengggg, #257387
- Fixed wrong link on help page, by steinmb, #257289
- Patch to prevent query rewriting for views, by Frank Steiner, #272432
- Taxonomies not syncing, by drewish, #256357
- Menu not refreshing locales, by Frank Steiner, #263124
- User profiles not translated on registration, by gustavlarson, #248089