fixes #8 - compile inner directives

fixes #8 - compile inner directives (see examples)
fixes #9 and #10; Now using a provider; Now able to use a filter

fixes #9 and #10; Now using a provider; Now able to use a filter and to
use content for the directive.
added examples

added some examples
added content to README

added content to README
added some lines to README

added some lines to README
fixes #11, #12 - makes it possible to change options at runtime

fixes #11, #12 - makes it possible to change options at runtime and not
only using .config()
added provider example

added example using provider $i18next();
fixing bug from last commit

fixing bug from last commit
allow passing options

allow passing options in directive (see README.md)
small README fix

small README fix - displays now code at options examples
added releases

added releases directory;
new tests

- new tests and Gruntfile (now supports `grunt server`)
- updated dependencies in package.json
- you can now pass options to the filter
fixes spelling in README

fixes spelling in README
add directive test

added tests for ng-i18next directive
fixed minification

fixed minification; not using ngmin anymore
splitting directive examples

splitting directive examples; splitted one file into many small
examples files
added count/plural examples (directive)

added count/plural examples (directive) and replaced spaces by tabs in
language files