Merge pull request #36 from qraynaud/master

Compile only when necessary
add some documentation

add some documentation to README
Revert "Compile only when necessary"

This reverts commit f68cb7904af6f5403fe086a06a22d3d92b70c130.
fix #37; add sprintf support

- fix #37
- add sprintf support
- add sprintf examples (+ README)
v0.3.2
update license year
add postProcessor examples

add examples of post processors to directive and provider examples
improve the way i18next handle values that could be interpolated