Improve the .gitignore file

* Ignore .sql.gz files
* Prepend a slash to paths to make them Vagrant-dir-relative instead of matching anywhere they are found
Merge pull request #66 from markjaquith/topic/improve-gitignore

Improve the .gitignore file
updates to README.md to include latest merge
Merge pull request #67 from carldanley/master

Include @markjaquith in README.md
Fixed a spelling mistake.

Just caught a spelling mistake.
Merge pull request #71 from curtismchale/patch-1

Fixed a spelling mistake.
README change - updated contributors
Small docs modification in bash_profile
Introduce custom apc.ini, set apc.shm_size to 128M

Per discussion in issue #68, it makes sense to set APC's memory limit to 128M instead of the default 32M that it ships with. Using a custom apc.ini file makes it easier to further customize other APC settings as we move forward.

Closes #68
Bump default memcached memory allocation to 128M from 64M

Testing large sites can include testing large amounts of cached data. Bumping the memcached limit to 128M is still supported by our server config at the 512M level. We can no customize other memcached settings at will with the linked memcached.conf file.

Closes #70
Happier default URL message than hello world
Include phpinfo at the default IP

It's helpful to have quick access to the PHP config on the server, especially as we consider various changes. This can now be accessed at http://192.168.50.4/phpinfo/ by default.
Separate directory change from status output in DB import script

This line was causing a miss on SQL files that were ready to import on my machine. Breaking it into two lines resolved the current issue. Going to explore why this could have been, but this commit may help others.
Update README.md

Added note on how to add something to your hosts file from the command line.
Remove deprecated comment style, fixes #73
Merge pull request #74 from Mamaduka/master

Fix Deprecated Comments - thanks @mamaduka!
README refresh
Add a custom source for PHP 5.4 during installation.

WordPress may still support 5.2.4, but we're moving up, up, up!

Causes an issue with the related xdebug.so due to a directory change. We'll fix that soon.
Account for xdebug.so directory change in PHP 5.4

This does not solve our long term issue of xdebug being enabled by default, but does prevent xdebug errors because of the missing extension from the old path.
Update README to reflect PHP version change