Script update; removed dialog icons

* Setup/scripts/management update
* Setup: Add notepad to "open with" menu
* Removed icons from dialog windows (except wizard)
* Changed TextKeyViewModel.cs (2 Sep): Error/consistency checking
Documentation and source folder in TxEditor toolbar
Merge-overwrite on key rename/duplicate; other fixes along the way
Several small fixes about validation, counting, and others
Last hidden character representation symbol of a line was misaligned
Updated documentation (spell checking, PDF with Windows 8 font)
Text key wizard improvements, continued UI translation, updated documentation
Code signing update, separate password file (not in the repository)
TxEditor wizard: Parameter detection in selected code
Setup: Quicker upgrade process; VS2013 support
Setup: Separated TxLib source code and assembly in different folders
Fixed version modified indicator in the build files
TxEditor: Refresh the sort order of all quantified texts when selecting the key
More translations added; small changes in wizard window