This class is internal only as well as the classes that inherit
from it (Git::Index and Git::WorkingTree). Remove the
deprecation warning and just remove the deprecated code.

Since Git::Stash#initialize is an internal only method, remove
the deprecation warning and removed the deprecated code.

…bject

Was originally meant to be entered as an issue, but now a document in the repository so changed "issue" to "document".

This change moves all the project announcement to a new
section at the end of the document. They are discoverable
in the table of contents at the top of the document still.

The monolithic 79-line Rakefile has been refactored into a clean
15-line loader that dynamically imports task definitions from the
tasks/ directory.

Changes:
- Created tasks/ directory with 5 focused rake files:
  - tasks/test.rake - test execution tasks
  - tasks/rubocop.rake - RuboCop linting tasks
  - tasks/yard.rake - YARD documentation tasks
  - tasks/gem_tasks.rake - gem building and release tasks
  - tasks/test_gem.rake - gem sanity check task

- Main Rakefile now:
  - Loads all .rake files from tasks/ directory
  - Dynamically builds default task list based on available tasks
  - Simplified from 79 lines to 15 lines

- Moved platform-specific logic (JRuby/TruffleRuby check) into
  yard.rake where it belongs

- Maintained all original functionality and default task behavior:
  - Default tasks: test, rubocop, yard, yardstick:coverage, build
  - yardstick remains commented out of defaults (too many warnings)

This refactoring improves maintainability and separation of concerns
while preserving all existing rake task functionality.

…RegexpEscape)

Replace invalid Git.deprecation/Git.deprecated calls with Git::Deprecation.warn.
Consolidate all deprecation-related tests into tests/units/test_deprecations.rb.

Changes:
- Base: use Git::Deprecation.warn in is_* methods and set_index/set_working
- Object::Commit#set_commit warns properly
- Consolidated log/base/object deprecation tests into one file
- Removed redundant test files

All tests pass locally: 430 tests, 1582 assertions.