PDF Split and Merge Basic 3.3.7

Upgraded PDF Engine and translations.
Fixed the MSI installer to properly handle command line properties on Windows systems where only .NET 4 or above is installed.

An updated PDF engine.
A new AcroForm policy to flatten them during a PDF merge.
A new menu entry to copy the selection table as a comma separated table.
An optional desktop icon.
A new Slovenian translation.
A number of small fixes and usability improvements.

* Added page selection to the Alternate Mix.
* Added Normalize page size to the Merge settings.
* Grouped some setting under Advanced settings.
* Added lenient/non lenient tasks execution.
* Added a Clear all settings item to the Clear button.
* Added close button to the notifications.
* Removed themes.
* Fixed an issue that could cause tasks to be executed before modal windows shows up.
* A number of fixes to the underlying PDF engine (SAMBox + Sejda).

# New Features
* New PDF reading and rendering engine.
* Support of text watermarks.
* Support of DOCX documents
* Separated Encrypt and Decrypt tools.
# Enhancements
* DOC to PDF tool improvements:
- Support for math symbols.
- Improved support for bookmarks.
- Support for dot/dash patterned lines.
- Improved accessibility support.
- Support for hatch pattern filling.
- Support for Unicode Surrogate Pair characters.
- Support for text inside shapes.
* PDF Viewer improvements:
- Added search box
- Improved PDF document loading speed
- Support for annotations and anti-aliasing fonts
* User interface has been improved.
* PDF Viewer and preview module have been improved.
* Improvements to command-line support.
* Translations have been updated.
# Bug Fixes
* Rare bug with opening protected files.
* Bug with decrypting protected files.
* Minor bug fixes.

- Drag and drop of rows in the merge task selection table so you can now easily sort rows.
- Added an option to discard bookmarks in split tasks and one to add the file name in the footer of the merged document pages.
- ToC generated for the merge task now has the same page size as the merged documents.
- Upgraded SAMBox and Sejda so there are many fixes on the underlying PDF engine.

- You can now tell the merge task to create a table of contents with a clickable list of merged PDF documents;
- The PDF engine has been upgraded and now, when you split PDFs, results documents are optimized and in some case they will be way smaller then before;
- We performed some user interface adjustments that users suggested;
- You can now turn off the notification that asks for a donation and finally you can save a workspace on exit and load one passing it as a command line argument to PDFsam.

* Improve notifications.
* 270 degrees rotation should be 90 counterclockwise.
* Add retain_as_one_entry bookmarks policy in Merge module.
* Disable mnemonic in recent workspace menu items.
* Default workspace not handled properly.
* MSI gibberish name during unistall.
* Make the regex in split by bookmarks more accessible.
* Rotate selection shouldn't have move up and move down buttons.
* Better error message in Split after 'n' pages if given number is out of boundaries.
* Alternate Mix missing upper boundary.
* Split at bookmark level 1 in 3.0.0.M2.
* Unhelpful Java Exception Messages.
* Improve current tooltip system.
* The apostrophe disappears from translated strings.

- Use Windows context menu to add PDF files for splitting or merging.
- Set permissions, password, meta for output files both in "Split" and "Merge" modes.
- Select certain pages or page ranges of files to be merged in “Merge” mode.
- Easy sorting of split PDF files due to their new naming.
- Compress output PDF files.
- Version of the program is now visible on loading screen.
- Several GUI bug fixes.