Merge pull request #282 from aranw/errors-exceptions

Errors and Exceptions
Minor (non-quote) grammar/spelling fixes
Merge commit 'dcb2d68db486e754d133e19e48267b441df357cd' into gh-pages
Merge commit 'ca1835615ae7926f449cc3432a79fff09725fdc5' into gh-pages

Conflicts:
	_posts/01-02-01-Use-the-Current-Stable-Version.md
	_posts/02-01-01-Code-Style-Guide.md
	_posts/03-02-01-Programming-Paradigms.md
	_posts/03-05-01-Command-Line-Interface.md
	_posts/04-03-01-PEAR.md
	_posts/06-01-01-Databases.md
	_posts/07-03-01-Exceptions.md
	_posts/08-03-01-Password-Hashing.md
	_posts/08-05-01-Configuration-Files.md
	_posts/11-01-01-Caching.md