Create reindex.py, add warning on mapping conflict
Next approach: Reindexer class

The seperation allows for the reindexer be subclassed to insert other models.
Fixes and edits
Refrain from magic in-place reindexing
Add --magic option to do in-place reindexing
Edit warnings, add docstring
Remove all magic, require explicit commands
Do not delete indices, but do auto-delete aliases
Update warning instructions, remove dead code
Simplify command line arguments
Use default host when not specified
Update warning messages
Merge pull request #93 from Treora/reindex

Create reindex.py, add warning on mapping conflict
run.py: Configure some sensible log output
elasticsearch: log.fatal, don't RuntimeError

This makes the suggestion to the administrator somewhat easier to read.
Bump version -> v0.12