Implement BASE_PATH environment variable

[ItsSpaceMan]

PR to implement base path, such that the service can run on /kutt, /url-shortener, or any other base path specified. Ran through the application several times with BASE_PATH omitted and set, and everything is looking good.

[ItsSpaceMan]

@poeti8 are you able to take a look at this PR?

[poeti8]

@ItsSpaceMan Yes

[browser-bug]

Is this getting any lights? I think it's a fairly important feature that would benefit lots of users. @poeti8

[yq2028]

in file : server/utils/utils.js , this snippet is wrong. it make the short link include the base_path no matter what the env.SHORT_URLS_INCLUDE_PATH is true or false.
if (linkDomain === env.DEFAULT_DOMAIN) {
path = env.BASE_PATH;

[ItsSpaceMan]

in file : server/utils/utils.js , this snippet is wrong. it make the short link include the base_path no matter what the env.SHORT_URLS_INCLUDE_PATH is true or false. if (linkDomain === env.DEFAULT_DOMAIN) { path = env.BASE_PATH;

Good catch; cleaned up. Thanks @yq2028.

Added a new commit as well to fix up some main page logic (see 3710b71).