v1.15.4

Changelog

4b259f5
Fix breaking change with new Docker version (symbolic links no longer supported on mapping)
Add --no-temp option to allow disabling mapping of temporary folder.
Refactoring of the options management
Print environment variables on --debug

275bba0
Fix problem with evaluation order of parameters in .tgf.config files
Fix version warning issue when specifying image different from the recommended image

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