Correct directory path stored in modules table.
refs #1042
Correct paths for DB representation of themes and modules
fixes #1063, updated hooks.tpl to expand all hook areas

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | -
| Refs tickets  | -
| Fixed tickets | #1063
| License       | MIT
| Doc PR        | -

Updated the hooks display template to expand all hook areas. This makes it easier to pick the right subscriber hook and attach the correct provider. Especially for modules with several hook areas.
Update config.php
Updated the action buttons in the Extensions modulelist

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | -
| Refs tickets  | -
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Added color parameter and updated the .png images that did not work any more. It adds a little color to the module list and makes sure that module plugins have an icon again (like scribite for instance). I used paperclip for that.
Merge pull request #1071 from espaan/modlist_actionbuttons

Updated the action buttons in the Extensions modulelist
Merge pull request #1066 from espaan/patch-26

fixes #1063, updated hooks.tpl to expand all hook areas
Revert "Merge pull request #1066 from espaan/patch-26"

This reverts commit b9904b68b3e1870ada65ec9ebe067efc69d6e493, reversing
changes made to c2998de7d07f52f89cd341960f3bac7b5fc2cecc.