Release version 1.0.1

Release version 1.0.0.

Fix incorrect tokenization of sequential delimited groups.

Fix command name matching for '?'.

Remove -Os flag as it is already available with MinSizeRel build.

Update readme.

Add missing TCLI_COMPLETE preprocessor barrier. Fix #13.

Move flushing up.

Remove use of 'compl'. Fixes #9.

Refactor and optimize.