fix phpdoc
removed share() as it gives a false sense of compatibility between 1.x and 2.x
updated the README file to make things clearer between 1.x and 2.x
minor #99 fix phpdoc (dominikzogg)

This PR was merged into the 2.0.x-dev branch.

Discussion
----------

fix phpdoc

Commits
-------

d8d01f9 fix phpdoc
fixed a memory leak
removed the mention of PHP 5.3 as 5.2 is very outdated now
fixed missing property
use of keys prop for isset() check of services/values
minor #112 use of keys prop for isset() check of services/values (raphahardt)

This PR was merged into the 2.0.x-dev branch.

Discussion
----------

use of keys prop for isset() check of services/values

Why not just use the keys prop for check if a service/value exists in Pimple?

Commits
-------

e2b05ce use of keys prop for isset() check of services/values