Allow users to specify both x_auth_access_type and the strategy name …

[bobber205]

…in case they need a different set of options for difference use cases. Say normal users vs enterprise users.

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[bobber205]

Should fix #63

and

#87

[coveralls]

Coverage remained the same at 100.0% when pulling 8f7d905 on bobber205:master into cfe7807 on jaredhanson:master.

[coveralls]

Coverage remained the same at 100.0% when pulling 8f7d905 on bobber205:master into cfe7807 on jaredhanson:master.