#13 Use post request for post/search API call
#13 Fix unit test, updated connections_to for Influencer/Connections test
Merge in from master

Merge branch 'master' of https://github.com/Traackr/traackr-api-php into issue_13_fix
Merge pull request #14 from Traackr/issue_13_fix

#13 Use post request for post/search API call