wp v1.2.3 sdk release.
[JENKINS] Android sdk version v2.6.8.1
Update changelog.txt
Merge pull request #75 from leancloud/wp

wp v1.2.3 sdk release.
unity release v1.1.6.
Merge pull request #76 from leancloud/unity

unity release v1.1.6.
[JENKINS] Android sdk version v2.6.8.2
Update changelog.txt
Update changelog.txt
[JENKINS] Android sdk version v2.6.9
Update changelog.txt
[JENKINS] iOS sdk version v2.6.9
Merge remote-tracking branch 'upstream/master'
Update iOS changelog.