Merge pull request #12 from samsullivan/master

Fix for class collision
line
Update README.md
Update README.md
added version requirement
added version requirement
fix
readme fix
Update README.md
Update README.md
HttpMethod shouldn't instatiable
Improving is_hex function.
Improve code indenting & others
Update README.md
More detailed install instructions in README. Also make composer the priority install.
Merge pull request #22 from scottmotte/master

More detailed install instructions in README. ...
Merge pull request #21 from andreyknupp/master

Improving the library, indenting the code.
gzip support; default request headers; customizable timeout; basic authentication; bugfixes; closes #5 #15 #16 #18
resolving conflicts; indenting
travis