WP_Filesystem refactoring


git-svn-id: https://plugins.svn.wordpress.org/child-theme-configurator/branches/filesystem@971110 b8457f37-d9ea-0310-8a92-e5e31aec5664
v 1.4.8 addresses 500 errors (out of memory) being caused by backtracing regex


git-svn-id: https://plugins.svn.wordpress.org/child-theme-configurator/trunk@975849 b8457f37-d9ea-0310-8a92-e5e31aec5664
patch release 1.4.8.1


git-svn-id: https://plugins.svn.wordpress.org/child-theme-configurator/trunk@975906 b8457f37-d9ea-0310-8a92-e5e31aec5664
updated readme


git-svn-id: https://plugins.svn.wordpress.org/child-theme-configurator/trunk@976240 b8457f37-d9ea-0310-8a92-e5e31aec5664
updated readme


git-svn-id: https://plugins.svn.wordpress.org/child-theme-configurator/trunk@976242 b8457f37-d9ea-0310-8a92-e5e31aec5664
merged from trunk


git-svn-id: https://plugins.svn.wordpress.org/child-theme-configurator/branches/filesystem-1.5.0@992212 b8457f37-d9ea-0310-8a92-e5e31aec5664