wxpython 3.0.2.0

WXPython 3.0.2

Closes #34699.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
wxpython: update 3.0.2.0 bottle.
bazaar: add 2.6.0 bottle.
cvs: update 1.12.13 bottle.
fossil 1.29
fossil: update 1.29 bottle.
Mark private VCSDownloadStrategy methods
Make cache_tag private
Make __path methods private
Make repo_valid? private
Add repo_valid? to remaining VCS strategies
Add clone_repo to remaining VCS strategies
Extract update from fetch in VCS strategies
Remove method that duplicates superclass implementation
Move SVN URL munging to initialize
Use start_with? instead of a regexp
Move fetch implementation into VCS strategy superclass
Mark private SubversionDownloadStrategy methods
Demote FIXME to a normal comment
Remove years-old TODO