HSTR v2.0 brings consistency and stability

This major HSTR release resolves confusing hstr/hh ambuiguity by choosing hstr to be the only name used. hh becomes just a shell alias. Therefore this release introduces backward incompatible changes:

• All HH_ starting environment variables were changed to be prefixed with HSTR_.
• Similarly configuration file names starting with .hh_ were renamed to start with .hstr_.
• Identifiers used in HSTR_CONFIG environment variable were changed to avoid clashes e.g. favorites to favorites-view. Please check man page for details and update your 1.x.x configuration.
• Ubuntu package name was changed - use: apt install hstr to install HSTR.
• Tarball name was changed as well to have hstr- prefix - please update your scripts.
• See #309 for more details.

In addition to that Bash autocomplete configuration has been added, long commands handling improved and all memory leaks fixed.

If you have any questions, suggestions or problem (package maintainers in particular) please don't hesitate to contact me.