Add API for /gitignore/templates to routes

See https://developer.github.com/v3/gitignore/
Generated code for /gitignore/templates API
Custom tests for gitignore API

Generated base, modified assertions
Add /meta API to misc in routes

See https://developer.github.com/v3/meta/
Generated code for misc.meta
Update miscTest to include meta
Add /emojis to misc API routes

See https://developer.github.com/v3/emojis/
Generate code for misc.emojis
Update misc tests to include /emojis
Merge pull request #165 from strongloop/misc

Add remaining miscellaneous APIs