trying to fix example
added apc cache sample to config.ini template
adjusted Storage to use less memory and trigger less cache writes

As of now filters will only be collected in an array when there is no cached representation of them.
The cache will only be written when no cache was found which preserves IO on each request in case the cache is hot.
Merge pull request #52 from staabm/patch-2

added apc cache sample to config.ini template
Merge pull request #53 from staabm/patch-3

adjusted Storage to use less memory and trigger less cache writes
Fixed spelling mistakes
Merge pull request #57 from BenPoulson/patch-1

Fixed spelling mistakes
Fixed #58

Use bindValue() instead of bindParam() to bind a value returned from a function to a PDO statement.
Merge pull request #59 from mynameiszanders/58-php-error-trying-to-bind-non-variable-to-pdo-statement

PHP Error: Trying to bind non-variable to PDO statement (PR).
Merge remote-tracking branch 'upstream/master'
Merged in origin changes from a while ago