Merge pull request #68 from ufosky/master

Update iOS changelog.
[JENKINS] Android sdk version v2.6.6
Update changelog.txt
Released javascript sdk v0.4.4
[JENKINS] Android sdk version v2.6.6.1
Update changelog.txt
Released js sdk v0.4.5
[JENKINS] iOS sdk version v2.6.7
[JENKINS] Android sdk version v2.6.7
Update changelog.txt
Update changelog.txt
Update iOS changelog.
Merge remote-tracking branch 'upstream/master'