tsess 0.5

This release brings a few changes and bug fixes:

- sessions are listed in lexicographic order
- attaching to an existing session no longer attaches to the last used
- the bash completions directory is resolved from pkg-config
- a new bash profile is installed and offers bash history integration
- VPATH builds behave predictably with bmake(1)

Comparatively, a lot of invisible work happened since tsess-0.4 and the
project has a test framework and already decent coverage. The code went
through the breaking changes from Hare 0.24.2 and libtool is no longer
part of the build system.

SHA-256 fingerprint:

tsess-0.5.tar.gz 0749d4ccc339139cb5641a6a049d48ee30e424fd54d5546c91d0b56793d5a406

The release archive was bootstrapped with the following dependencies:

- autoconf 2.72
- automake 1.16.5
- binutils 2.43
- gcc 14.2.1
- gmake 4.4.1
- hare 0.24.2
- harec 0.24.2
- qbe 1.2
- scdoc 1.11.3