Fix earlier commit for grunt watch.

refs TryGhost/Ghost-UI#18
- Trigger livereload when files in core/client/assets/css/ change
- Copy over new ghost-ui files when changed
Fixes race conditions in functional test introduced in PR#2395

fixes PR#2395
- in editor_test.js line 272, I wait until the post settings menu appears, and THEN also wait until the delete post button appears, rather than just waiting for the first condition, this can result in a race condition which has been seen.
- in editor_test.js line 229, I click on the tag, then wait until it disappears, rather than asserting the tag doesn't exist immediately.  This could potentially result in a race condition, but I have not seen it yet.
- in editr_test.js line 315, I click on the delete post button, and now wait for the modal container to appear before clicking the accept button.  This could result in a race condition, but I have not seen it yet.
Merge pull request #2430 from mattse/mattse#2409

Fixes race conditions in functional test introduced in PR#2395
Fixes random pg failures.

fixes #2075
- Updates knex to latest version
- Fixes expected value in page test
- Change fixture insertion to be sequential
- Add orderBy to insertMorePostsTags fixture helper
Merge pull request #2403 from halfdan/watch-ghost-ui2

Fix earlier commit for grunt watch.
Merge pull request #2409 from halfdan/2075-pg-errors

Fixes random pg failures.
Fix scoping issue on signup

closes #2429
Refactor the Ghost Editor

issue #2385, issue #2108

- Separate out the various objects which form the editor into their own
  modules
- Decouple the modules where possible
- Rename and reshuffle bits of modules for consistency
- Minimise public APIs of the modules, and ensure they are consistent
- Add comments to the modules
Upgrade CodeMirror

closes #2108

- upgrade to 4.0.1
- requires removing the deprecated setLine method
Fix undo bug

issue #2436
Merge pull request #2398 from ErisDS/cm-refactor

CodeMirror Refactor & Upgrade
Force preview to scroll to the end

fixes #958, fixes #535

- If the cursor is within the last 5 lines, then scroll to the end of the preview window, rather than using a ratio
Rename getSlug to slug

another 2 % of #2124
- renamed `/ghost/api/v0.1/posts/getSlug/ to
`/ghost/api/v0.1/posts/slug/`
- renamed method getSlug to generateSlug
Merge pull request #2428 from Decad/master

Fix scoping issue on signup
Merge pull request #2437 from ErisDS/cm-scroll

Force preview to scroll to the end
Add shim for codemirror on touchscreens

fixes #2385

- stolen the CM shim from js-bin
- if we're on a touchscreen device, don't use CM
- if we're on a touchscreen device, show a coming soon message for uploads
Merge pull request #2438 from ErisDS/cm-mobile

Add shim for codemirror on touchscreens
Fixes modal fading inconsistency problem by disabling jQuery's
transition and allowing CSS to do its thing

closes #2400
- Removed fadeIn, jQuery's animation
- Added show(), which only manages display, giving transitions to CSS
Merge pull request #2405 from nicksahler/master

Fixed modal inconsistent fade problem
Switch Showdown to fork

fixes #2312

- showdown fork understands more html tags