config: use absolute_import

changelog: use absolute_import

changegroup: use absolute_import

bundlerepo: use absolute_import

bundle2: use absolute_import

branchmap: use absolute_import

bookmarks: use absolute_import

archival: use absolute_import

ancestor: use absolute_import A few months ago, import-checker.py was taught to enforce a more well-defined import style for files with absolute_import. However, we stopped short of actually converting source files to use absolute_import because of problems with certain files. Investigation revealed the following problems with switching to absolute_import universally: 1) import cycles result in import failure on Python 2.6 2) undetermined way to import C/pure modules While these problems need to be solved, they can be put off. This patch starts a series of converting files to absolute_import that won't exhibit any of the aforementioned problems.

discovery: always use batching now that all peers support batching Some peers will transparently downgrade batched requests to non-batched ones, but that simplifies code for everyone using batching.