Add some debugging options for 'when it doesn't work'

[wrtsprt]

I added the URL correctly I think, and the access token (all scopes enabled) as well (adding quotes around it b/c it would crash otherwise), but I get a no-projects found. I am looking at the logs, but I can't really see what's happening.

[2018-04-25 07:15:43][STDERR: input.scriptfilter] 07:15:42 workflow.py:2247 DEBUG    ---------- GitLab (1.4.0) ----------
07:15:42 workflow.py:1657 DEBUG    reading settings from /Users/rap/Library/Application Support/Alfred 3/Workflow Data/com.lukewaite.alfred-gitlab/settings.json
07:15:42 workflow.py:2531 DEBUG    update check not due
07:15:42 workflow.py:2650 DEBUG    got password : com.lukewaite.alfred-gitlab:gitlab_api_key
07:15:42 workflow.py:1884 DEBUG    loading cached data: /Users/rap/Library/Caches/com.runningwithcrayons.Alfred-3/Workflow Data/com.lukewaite.alfred-gitlab/__workflow_update_status.cpickle
07:15:42 workflow.py:2461 DEBUG    update_data: {u'available': False}
07:15:42 background.py:188 DEBUG    [update] command cached: /Users/rap/Library/Caches/com.runningwithcrayons.Alfred-3/Workflow Data/com.lukewaite.alfred-gitlab/update.argcache
07:15:42 background.py:192 DEBUG    [update] passing job to background runner: [u'/usr/bin/python', '/Users/rap/Dropbox/apps-sync/alfred/Alfred.alfredpreferences/workflows/user.workflow.493FBFEB-5C36-4CFC-8595-F1E6FF888476/workflow/background.pyc', 'update']
07:15:43 workflow.py:2247 DEBUG    ---------- GitLab (1.4.0) ----------
07:15:43 background.py:197 DEBUG    [update] background job started
07:15:43 workflow.py:2440 DEBUG    set last run version: 1.4.0
07:15:43 workflow.py:2289 DEBUG    ---------- finished in 0.132s ----------

If the API returns error codes, maybe those could be shown to the user.

I noticed that adding the URL shows an Alfred error, though the log statements don't really tell my what's wrong:

[2018-04-25 07:29:04][ERROR: action.script] 07:29:04 workflow.py:2247 DEBUG    ---------- GitLab (1.4.0) ----------
07:29:04 workflow.py:1657 DEBUG    reading settings from /Users/rap/Library/Application Support/Alfred 3/Workflow Data/com.lukewaite.alfred-gitlab/settings.json
07:29:04 workflow.py:2531 DEBUG    update check not due
07:29:04 gitlab.py:40 INFO     Setting API URL to https://gitlab.yourcompanyhere.com/api/v4/projects
07:29:04 workflow.py:2440 DEBUG    set last run version: 1.4.0
07:29:04 workflow.py:2289 DEBUG    ---------- finished in 0.004s ----------
[2018-04-25 07:29:04][action.script] Processing output of 'output.notification' with arg ''

I even edited the code now to paste our URL into the script instead of the default one and I still don't get any projects.