Typo fix: 'may items' => 'many items'
Changed image mode from 755 to 644.
max overflow

Enabled the passing of max_overflow to create_engine
Fix ZeroDivisionError when counting Pagination object pages

When ``per_page`` was set to ``0``, there was ZeroDivisionError
raised in ``Pagination.pages`` property.
sqlalchemy events integration to remove deprecated extensions
Merge pull request #122 from ignacysokolowski/master

Fix ZeroDivisionError when counting Pagination object pages
Export sqlalchemy event module on the extension
Merge branch 'master' of github.com:mitsuhiko/flask-sqlalchemy
Merge remote-tracking branch 'thrisp/sqlalchemy_events_revision'
Merge pull request #119 from scragg0x/patch-1

max overflow
Added missing documentation for new functionality
0.16 -> 0.17
Add tox configuration
Ignore eggs created by installing deps
Add changelog section for upcoming version
Merge branch 'prepare-next-version' into python3-port
Add Python 3.3 support, dropping 2.5
Add travis configuration
Record operations only for signalling sessions (reprise)

This is a rebase of commit cf40cae (GitHub pull request #109 by @paxan)
on current master. The original changes were (I assume accidentally)
undone in commit eb208b5 (GitHub pull request #123 by @thrisp). The
original commit message is copied below.

In some scenarios model classes derived from SQLAlchemy(...).Model
may be used with basic SQLAlchemy session instances which aren't
extended with signalling functionality.

Before this fix, when you try using a vanilla session with
such models, you would get exception like this:

  File ".../flask_sqlalchemy.py", line 163, in after_insert
    return self._record(mapper, instance, 'insert')
  File ".../flask_sqlalchemy.py", line 172, in _record
    s._model_changes[pk] = (model, operation)
AttributeError: 'SessionMaker' object has no attribute '_model_changes'

With this fix, this problem is resolved.
Timing of SQL queries fixed by switching to the new Event API from SQL Alchemy introduced in version 0.7. Usage of ConnectionProxy is deprecated from that version, and using it resulted in invalid measures.