[#1709] Akash/Faris : Removed unused code and fixed test in api_authentication feature.
Merge pull request #456 from akash/master

merginf pull req 446
Merge branch 'master' of git://github.com/rapidftr/RapidFTR
Merge pull request #457 from farismosman/master

[#Fixing failing tests]
[#Refactoring] Faris: Moved api_edit_child and api_create_child features into one file.
[#Refactoring] Faris: Merged api_retrieve_child_record and api_retrieve_child_record_ids into one file api_retrieve_child_records.
[#Refactoring] Faris : Moved API tests into a separate folder.
[#Fixing Tests] Faris: Fixed translation test.
[#Fixing Tests] Faris : Fixed failing tests in add_custom_field_to_form_section. Removed all sleeping time in tests.
[#Fixing Tests] Faris : Removed I wait for x seconds.