fix(file_list): Incorrect response after remove and add file

Remove and then immediately add same file can lead to
incorrect content in response. Because pending timeout after remove
may resolve early then file will be processed, and in response get not
processed content.
docs(plus): Update travis details to match 0.12.
Merge pull request #1156 from Dignifiedquire/docs_travis

docs(plus): Update travis details to match 0.12.
fix(preprocessor): Throw error if can't open file
Merge pull request #1143 from keithamus/patch-1

fix(preprocessor): Throw error if can't open file
Merge branch 'pr-1088' into presubmit-master-pr-1088
chore: release v0.12.23
fix: Wrap url.parse to always return an object for query property

Closes #1182
docs: fix link to npm package page
Merge pull request #1182 from nathanfaucett/master

Cannot read property x-ua-compatible of null
Merge pull request #1193 from compact/patch-1

docs: fix link to npm package page
fix(client.html): always open debug.html in a new browser process

Chrome reuses a single process for tabs opened by clicking links. This means that if I use debugger in debug.html it will
block the regular karma tab which will make karma think that the connection was lost.

By forcing the debug.html to be opened in a new process the original chrome tab will be unaffected while debugging with
debug.html.

Info about the rel attribute: http://blog.chromium.org/2009/12/links-that-open-in-new-processes.html
Merge pull request #1203 from IgorMinar/patch-5

fix(client.html): always open debug.html in a new browser process
chore(travis): fix travis build for node@0.8

Fix problem with updating npm on node@0.8
For getting more details see https://github.com/npm/npm/issues/6246
Merge pull request #1205 from maksimr/fix-travis

chore(travis): fix travis build for node@0.8
chore: update contributors
chore: release v0.12.24
fix(preprocessor): calculate sha1 on content returned from a preprocessor

Fixes #1204
docs: fix small grammar error in ember example
Merge pull request #1211 from jonbretman/docs-ember-grammar-fix

docs: fix small grammar error in ember example