Merge pull request XeroAPI#530 from XeroAPI/adde_budgets_fix_reports

Add reports fixes, and budgets endpoints

Merge pull request XeroAPI#528 from XeroAPI/json_parse_bug

fixing XeroAPI#484 json parse an empty body from a failed rate limit 429 call

Merge pull request XeroAPI#513 from XeroAPI/new_docs_and_4_11_1

docs improvement, and fix the vsn num in headers

Merge pull request XeroAPI#507 from XeroAPI/replace-preinstall-script

replaces preinstall script with prepare script

Merge pull request XeroAPI#507 from XeroAPI/replace-preinstall-script

replaces preinstall script with prepare script

Merge pull request XeroAPI#504 from XeroAPI/update-dependencies

Update dependencies

Merge pull request XeroAPI#503 from XeroAPI/csrf

refactors use of params and check for csrf

Merge pull request XeroAPI#498 from XeroAPI/xero-node-421-redux

resolves xero-node 421

Merge pull request XeroAPI#496 from XeroAPI/revoke

build latest from spec and add revocation endpoint

Merge pull request XeroAPI#490 from XeroAPI/node_files_v2

xero-node XeroAPI files API