Adding BC and some fixes.
refer to #912 updated autoloading of modules

Removed the legacy check and added an is_dir check to do this only for modules that have a lib subfolder, so old module structure.
Merge pull request #954 from espaan/1.3

refer to #912 updated autoloading of modules
Support PHP files moved from modules lib dir to module root.
Support PHP files moved from modules lib dir to module root.
1.2.x to 1.3.x migration script converted to pure php script.

Coding standards

Coding standards
refers to #945, added comments about legacy and compat var

Small description added to the comments on legacy_prefilters and compat_layer variables.
Merge pull request #957 from espaan/1.3

refers to #945, added comments about legacy and compat var
Support PHP files moved from modules lib dir to module root.
Correct min PHP version.
Removed jQuery and jQueryUI
Added ZikulaJQueryBundle and ZikulaJQueryUIBundle.
Fixed wrong throws, closes #923.
Merge pull request #922 from cmfcmf/patch

Adding BC and some fixes.
Move BC layer to make sure it is always loaded.
Merge pull request #958 from cmfcmf/bc-layer

Move BC layer to make sure it is always loaded.
Merge pull request #956 from phaidon/replace-update

1.2.x to 1.3.x migration script converted to a pure php script.
Merge pull request #895 from cmfcmf/component-installer

[WIP] Introduced component installer. jQuery now is auto-updated to the newest 1.X.X versions. Closes #826.
Set frontpage module to static frontpage if it is deactivated, closes #104.
Merge pull request #873 from cmfcmf/startmodule

Set frontpage module to static frontpage if it is deactivated, closes #104