Merge pull request #1 from kakueki61/feature/upload_image

add base code to POST image data
Add CustomEditText having TextWatcher
Merge pull request #2 from kakueki61/view/add_custom_edit_text

Add CustomEditText having TextWatcher
ignore Constants.java
Merged in config/update_gitignore (pull request #1)

ignore Constants.java
ignore build/
Merged in config/update_gitignore (pull request #2)

ignore build/
add base Activities for Upload images