Merge pull request #639 from vishwasbabu/develop

temporary updates to MIFOSX-735 to fix MIFOSX-742
prep for 1.12 Release
Update CHANGELOG.md

for 1.12.0.release
fix for Mifosx-437
supress warnings on data fields.
update release props to develop.
fix minor issues in Mifosx-437
MIFOSX-748: update api documentation, resolve null pointers when creating charge with empty request.
update AMI instructions
Update INSTALL.md
update release properties.
Update INSTALL.md
Update CHANGELOG.md
update release properties for develop branch.
update release version for bug release.
MIFOSX-734: add further information on transaction processing strategy feature on platform.
MIFOSX-734: add further information on transaction processing strategy feature on platform.
MIFOSX-733: undo of disbural when sending no note parameter was causing null pointer. Fix ensures null pointer exception doesnt occur when checking for existence of a parameter when no request body exists.
MIFOSX-733: undo of disbural when sending no note parameter was causing null pointer. Fix ensures null pointer exception doesnt occur when checking for existence of a parameter when no request body exists.
MIFOSX-715: if the image resource is missing for whatever reason (backup didnt copy filestructure, someone removed file) pass back approp error message from API.