Fixed typo in Element.waitForElementPresent() exception message.

Signed-off-by: Ben Bunk <benbunk+github@gmail.com>
Add requirement for Java 7 or above to README.md

Signed-off-by: Ben Bunk <benbunk+github@gmail.com>
Remove Oracle from Requirements section of README.md

Signed-off-by: Ben Bunk <benbunk+github@gmail.com>
Merge pull request #52 from benbunk/master

Fixed typo in Element.waitForElementPresent() exception message.
Merge pull request #58 from benbunk/readme

Add Requirements section to README.md