v0.3.0

Changes:

• Experimental 64-bit build (stcm-editor-msvc64-0.3.0.zip). May or may not be faster (but the exe is certainly bigger, and bigger is better, right?). Requires a 64-bit OS and the 64-bit version of MSVC 2015 Update 1 redistributables.
• Internal refactorings, (probably) proper .cl3 support.
• New .cl3 commands: --remove-file, --set-link, --remove-link,
• New --mode parameter to determine operation mode (old --export-only and --import-only deprecated)
• Auto mode now supports .cl3 extracting/repacking.
  • Rename/copy stcm-editor.exe to cl3-tool.exe to unpack/repack .cl3 files by default.
• Display version number in the help message...