builder: Document how to set Japanese in Debian 7.

(cherry picked from commit d885d6f6a97ee119fe1751df6f7d04844bfbf6be)
builder: Fix documentation for --attach option.

(cherry picked from commit 5fa55389d4a84a942010f8a77d305bc134deacf2)
builder: Minor documentation fix to manual page.

(cherry picked from commit 6879fdf98961bf7ef1610e5d131f1b494892bcdf)
builder: Add --no-delete-on-failure option to aid debugging.

This lets you debug failures in virt-builder, especially when scripts
or installing packages fails.

(cherry picked from commit 5136de98e7f4bd7a967da5b3ede72c729aa7805e)
builder: For performance, recommend using the --no-sync option.

(cherry picked from commit 69d9c8515c32dcc67e4ce752215e18eb811f8029)
builder: planner: Whitespace change.

(cherry picked from commit e664739a578f31c3f97073e713f9f33d4eb62d8d)