Refactoring compatibility with Laravel versions

Added override configs and blade directive

Merge pull request anlutro#120 from Vendin/cache

Cache for read settings from store

Only get defaults from config if key is not an array.

add ability to load default values from config file 'defaults' array… (…

…anlutro#113)

add ability to load default values from config file 'defaults' array…

Fixed bug in AddUniqueToKeyColumnInSettingsTable (anlutro#111)

Merge pull request anlutro#110 from mo7amed-3bdalla7/master

add unique constraint to key column

Merge pull request anlutro#98 from IsraelOrtuno/master

Making settings helper return the store

Merge pull request anlutro#96 from IsraelOrtuno/master

Added alias for resolution

Merge pull request anlutro#95 from IsraelOrtuno/master

Add a setting() helper to act as an alias