Cache keys are now namespaced to minimise the chance of name clashes and accidental overwrites

git-svn-id: https://plugins.svn.wordpress.org/dxw-security/trunk@942260 b8457f37-d9ea-0310-8a92-e5e31aec5664
Escaping a variable which was missed

git-svn-id: https://plugins.svn.wordpress.org/dxw-security/trunk@942262 b8457f37-d9ea-0310-8a92-e5e31aec5664
* Bump version to 0.2.6
* The api now groups counts of plugin requests by the version of the dxw Sec plugin that requested it
* Minor bugfixes

git-svn-id: https://plugins.svn.wordpress.org/dxw-security/trunk@942263 b8457f37-d9ea-0310-8a92-e5e31aec5664