Version 2.7.11: the Windows launcher and install-doc fixes

Ships the launcher/doc commit on top of v2.7.10 as a release:
- start.bat passes --db/DB to the server (it only stored the value before) and
  sends --gsmtap-port only for gsmtap capture, like start.sh;
- both .bat launchers quote their values and keep the quoting of pass-through
  options, so paths with spaces work (--db, --web-dir, --pcap, --output);
- the READMEs describe both install paths (release artifacts or a git clone)
  and document the launchers and the Windows python-on-PATH requirement.

Version strings in version.py, pyproject.toml, PWA_VERSION and the version
test move together; SW cache simtrace-analyser-v93.

README.md

@@ -105,8 +105,8 @@ Everything is on the
 **Wheel** (recommended — an isolated install, the PWA is inside the package):
 
 ```sh
-pipx install ./simtrace_analyser-2.7.10-py3-none-any.whl
-# or: pip install ./simtrace_analyser-2.7.10-py3-none-any.whl
+pipx install ./simtrace_analyser-2.7.11-py3-none-any.whl
+# or: pip install ./simtrace_analyser-2.7.11-py3-none-any.whl
 
 # then run (the UI is served at http://127.0.0.1:8081/):
 simtrace-analyser-server --capture gsmtap
@@ -116,7 +116,7 @@ simtrace-analyser-server --capture gsmtap
 shown there):
 
 ```sh
-pip install https://github.com/anttro/simtrace-analyser/releases/download/v2.7.10/simtrace_analyser-2.7.10-py3-none-any.whl
+pip install https://github.com/anttro/simtrace-analyser/releases/download/v2.7.11/simtrace_analyser-2.7.11-py3-none-any.whl
 ```
 
 With the GitHub CLI, download the latest wheel without knowing the version: