Update base.py

Sometimes an integer is passed i.e. timeout=30.
Also, type_text won't catch something like to='client:1' etc..
In these conditions the error 'data should be either a binary or a string' is being raised.
Thus convert all to utf-8 except int, and remove exception
Update base.py

Fixed ERROR: test_unicode.test_double_encoding from my last commit.
Update base.py

Fixing
twilio/rest/resources/base.py:43:28: E231 missing whitespace after ','
twilio/rest/resources/base.py:48:80: E501 line too long (87 > 79 characters)

from my last commit to ensue PEP8
Update base.py

Fixing
twilio/rest/resources/base.py:48:80: E501 line too long (80 > 79 characters)
from my last commit... uggghhhh PEP8
Merge pull request #116 from jvankoten/master

Fixing 'data should be either a binary or a string'