Highlighting source code after kuzya launching #24
Description
If there is not reason to recover last session (see ticket #22), temporary file should be created right after launching Kuzya. It will enable highlighting source code (in order to Default Language).
- If default language feature is enabled ( not equal to "None"), create temporary file in system temp folder (like %TMP% in Windows) with appropriate extension according to default language (for example, .cpp for c++)
- If there is necessary to recover last session (see ticket #22) temporary file should not be created (it already exists).