Support for multiline strings in EnvironmentConfig

See merge request !8

Introduced the feature to define multiline strings to be stored as configuration values for a Flask application. Variables are stored normally in the "multivars.py" file inside each environment folder, and are accessible via application.config dictionary.

Merge request from 0.5 to master

See merge request !7

There might be sync problems between local and server token expiration dates. This type of connection tries to connect using two attempts, as follows:

* The API tries to connect with current token
* If response code is 401 (Unauthorized), try to generate new token and attempt to connect again
* Return connection response from first or second attempt

0.4 to master

See merge request !6

- Included the function _custom_headers as an overwritten function. The idea is to allow the API connection to include a custom header besides the fixed header;
- Flag "token_required" changed to "add_custom_header", which it calls the _custom_headers function instead of including the token value;
- By default, the "_custom_headers" function will include the token value as part of the header.

- Included the function _custom_headers as an overwritten function. The idea is to allow the API connection to include a custom header besides the fixed header;
- Flag "token_required" changed to "add_custom_header", which it calls the _custom_headers function instead of including the token value;
- By default, the "_custom_headers" function will include the token value as part of the header.

0.3

See merge request !5

- Output as raw content instead of JSON allowed

- .gitignore added

0.2

See merge request !4

- Output as raw content instead of JSON allowed

- Fixed error code on failed connection to 404

0.1

See merge request !3

- Library to set environment using .env files

- Library to set environment using .env files

- Authentication and password generation added

See merge request !2

- Library to set environment using .env files

- Authentication and password generation added

See merge request !1

- Library to set environment using .env files