Write and rename operations are often followed by CHMOD.
There may be valid use cases for rebuilding the site on CHMOD,
but that will require more complex logic than this simple conditional.
On OS X this seems to be related to Spotlight, see:
https://github.com/go-fsnotify/fsnotify/issues/15
A workaround is to put your site(s) on the Spotlight exception list,
but that may be a little mysterious for most end users.
So, for now, we skip reload on CHMOD.
This small commit will be a 100% improvement for most OS X-users.
Fixes #1587
Currently a `[]byte` copy is returned. In most cases this is the safe thing to do, but we should just modify/grow the slice as needed.
This is faster and consumes less memory:
```
benchmark old ns/op new ns/op delta
BenchmarkReplaceShortcodeTokens-4 7350 4419 -39.88%
benchmark old allocs new allocs delta
BenchmarkReplaceShortcodeTokens-4 5 1 -80.00%
benchmark old bytes new bytes delta
BenchmarkReplaceShortcodeTokens-4 4816 1152 -76.08%
```
This commit is aso a small spring cleaning of duplicated code in the different `PageConvert` methods.
Fixes #1516
Page.GroupByParam function internally uses Page.GetParam to get a
parameter value for a key of a page group but now Page.GetParam returns
a lowercase character string every time. It has no need to using
lowercase character string as a group key value and it confuse a
function user.
This fixes it to keep and return an original parameter string as a group
key value.
Fix #1564
Prevent some frequently occurring problems
* Ensure version number is between quotes
* Ensure git and SSH are installed for the deployment step
* Focus extra attention on the wercker.yml verification site
