[TEST] Adding JSHint to the project

* Setting wanted code warnings configuration is required
* It runs on "grunt jshint"
Add link to doc/capistrano.md in README
Add codeclimate badge to README
Add a newline before the CodeClimate badge
Merge pull request #161 from benwtr/codeclimate_badge

Add CodeClimate badge to README
Merge pull request #160 from benwtr/readme_capistrano_link

Add link to doc/capistrano.md in README
Merge pull request #159 from maxiperezc/add-jshint

[TEST] Adding JSHint to the project
Add some new tasks so capistrano can install prerequisites and provision a gatewayd server from scratch
[TEST] Fix JSHints to improve code quality
Minor fixes to make the staging:cold_setup task go
document additional cap deployment tasks
[CHORE] Change migrations directory path
Merge pull request #164 from benwtr/cap_from_scratch

Additional capistrano tasks for deploying to a server that doesn't already have the prereqs installed
Merge pull request #163 from maxiperezc/fix-jshints

[TEST] Fix JSHints to improve code standards
Merge pull request #166 from maxiperezc/fix-migrations-dir

[CHORE] Change migrations directory path
[LOGGING] Add logging to main processes

* Separated events between info and error categories
* Logged deposits, withdrawals, outgoing payments, incoming payments