Merge pull request #879 from franzliedke/patch-17

[Eloquent] Bug with eager loading relationships and isset()
Merge pull request #910 from franzliedke/patch-20

Force UTF-8 charset on JSON responses
Merge pull request #905 from franzliedke/patch-19

[Docs] Localization page: Fix anchor name
Merge pull request #903 from Lapayo/master

Fixed a little bug with the Input::has_file function
Merge pull request #902 from JesseObrien/feature/eloquent-update-timestamp

Feature/eloquent update timestamp
Merge pull request #901 from franzliedke/patch-18

Ignore NULL values when determining whether a model object is dirty
Merge pull request #899 from RoumenMe/develop

Bulgarian translation
Merge pull request #895 from TomorrowToday/develop

Eloquent docs update: eager loading using $includes example
Move get_file_size() helper function to helpers.php.
Merge pull request #892 from jasonlewis/bug/database/select

Fixes #818, allows Query select to just be an Expression.
Merge pull request #889 from Nirlah/develop

Hebrew Translation
Merge pull request #880 from tomasz-tomczyk/feature/polish-translation

Polish translation
Merge pull request #888 from TommyC81/patch-3

Documentation on how to attach data to pivot table
Merge pull request #868 from lucadegasperi/bug/phpunit

Artisan test command fix
Merge pull request #874 from franzliedke/patch-16

[Eloquent] Constraining eager loads only allows WHERE clauses
Merge pull request #862 from franzliedke/patch-15

[View] Pass variables with more expressive methods
Merge pull request #854 from jasonlewis/feature/pattern-filters

Allow filter patterns to supply a name and callback as an easier alternative.
Merge pull request #798 from xsbeats/feature/validation_required_with

Added required_with validation rule...
Merge pull request #847 from tobsn/patch-1

NOT NULL order issue fixed!
Add Japanese language resource files.