Log Message:
Update contao43 to 4.3.9.

# Contao calendar bundle change log

### 4.3.8 (2017-04-24)

 * Correctly use the en dash in the calendar modules (see contao/core#8690).
 * Correctly support 64 character template names everywhere (see contao/core#6819).

# Contao comments bundle change log

### 4.3.8 (2017-04-24)

 * Correctly support 64 character template names everywhere (see contao/core#6819).

# Contao core bundle change log

### 4.3.9 (2017-04-25)

 * Revert the Punycode library changes (see contao/core#8693).

### 4.3.8 (2017-04-24)

 * Inline small images in protected folders in the file manager (see #636).
 * Correctly encode the URL in the DataContainer::switchToEdit() method (see #762).
 * Fix the parent view drag and drop in Firefox (see #666).
 * Correctly display the search results in the extended tree view (see #739).
 * Update the Punycode library to version 2 (see #748).
 * Fix the "delete file" button for non-admin users (see #764).
 * Prevent endless loops in the book navigation module (see contao/core#8665).
 * Limit the maximum size of dimensionless SVGs in the back end (see \ 
contao/core#8684).
 * Correctly support 64 character template names everywhere (see contao/core#6819).
 * Remove the UTF-8 BOM when combining files (see contao/core#8689).
 * Correctly move folders with an "@" in their name (see contao/core#8674).
 * Correctly redirect to the last page visited upon login (see contao/core#8632).

### 4.3.7 (2017-03-23)

 * Check the database connection in the WebsiteRootsConfigProvider class.
 * Fix the %2B conversion in the Controller::addToUrl() method.

# Contao listing bundle change log

### 4.3.8 (2017-04-24)

 * Correctly support 64 character template names everywhere (see contao/core#6819).

# Contao news bundle change log

### 4.3.8 (2017-04-24)

 * Correctly support 64 character template names everywhere (see contao/core#6819).

# Contao newsletter bundle change log

### 4.3.8 (2017-04-24)

 * Correctly support 64 character template names everywhere (see contao/core#6819).