Mac: Repair current OpenSSL undefined reference from homebrew to dynamic (#1971)

* Repair current OpenSSL static reference from homebrew

* These are the default locations, as of today, for Mac OS X 10.11.4 *(El Capitan)*

**NOTES**
* This could really use some environment variables for homebrew root and which SSL version is in use. Not familiar enough yet with recent Qt to do this at this time.
* Symbolic links could also be used but again determining the current homebrew SSL installed is something to be desired e.g. similar to `$ openssl version` e.g. perhaps a `cut` of `$ brew info openssl`?

Refs:
* http://brew.sh/ *(homepage)*
* https://github.com/Homebrew/brew *(repo)*

Historical refs:
* #1888
* #1850

* Mac: Scrape `brew` output for openssl working install directory as per @nowrep

* Addresses a long standing bug on Mac compiling with this project
* Also correct the BUILDING markdown file for OS X... was awaiting response from the owner to do this to see which direction to move.

**NOTES**
* Quotes **are required** when using `$$system` here otherwise `cut` fails with no switch argument found

Applies to #1971

* Fix BUILDING to BUILDING.md

* Do this so it actually parses markdown

Indirectly related to #1971

* Fix `brew` to Homebrew

* Even though the project is named `brew` and owner is `Homebrew` their pages refers to it as `Homebrew`

Applies to #1971

* Yet another change

* There are more symlinks... so the results from `brew --prefix openssl` yields a symlinked path and adding `/include` and `/lib` to them resolve alternately to the `Cellar`. Feel **much** better about using this one since it's an exact API as I mentioned earlier in the PR

Applies to #1971

* Add a single newline for @cranes-bill

* Only one newline is needed and has nothing to do with trailing spaces... at least according to the GH editor
* Restores the flow :)

Applies to #1971

* More flow of README.md

* GH preview said it didn't need this but I guess it does... we'll try newlines everywhere ;)

Applies to #1971

* Use non-standard markdown for "newlines"

* Restore the spaces manually

**NOTES**
This is not any known specification but it's what @nowrep wants

Refs:
* [CommonMark](http://commonmark.org/)
* [Daring Fireballs](http://daringfireball.net/projects/markdown/)

BUILDING.md

@@ -44,7 +44,9 @@ Linux / Unix
 MAC OS X
 ----------------------------------------------------------------------------------
 
-  There is no extra dependency, you only need Qt tools and XCode.
+  You need to have Xcode from the Apple App Store installed in Applications, [Command Line Tools for the same Xcode version](https://developer.apple.com/),
+  [Homebrew](http://brew.sh/), and `$ brew install openssl` for openssl.
+  Next compulsory requirement is Qt 5 (>= 5.6) with QtWebEngine.
   After successful compilation, you need to run macdeploy.sh script to correctly
   build the application bundle. You will do it with following command:
 

CHANGELOG

@@ -344,7 +344,7 @@ Version 1.4.0
     * use .qupzilla/tmp instead of /tmp for temporary data
     * saving passwords should now work for much more sites
     * don't steal Ctrl+B/U/I shortcuts from page
-    * disabled by default opacity effect on tab previews - see BUILDING
+    * disabled by default opacity effect on tab previews - see BUILDING.md
     * improved showing navigation toolbar in fullscreen
     * moved config directory into ~/.config/qupzilla
     * certificates bundle is now only used on windows

README.md

@@ -34,7 +34,7 @@ Compiling
 ----------------------------------------------------------------------------------------
 
 Before you start compiling, make sure that you have installed the Qt (>= 5.6) development libraries
-and you have read the [BUILDING](https://github.com/QupZilla/qupzilla/blob/master/BUILDING) information.
+and you have read the [BUILDING.md](https://github.com/QupZilla/qupzilla/blob/master/BUILDING.md) information.
 
 **Linux**
 

src/lib/lib.pro

@@ -480,8 +480,9 @@ os2 {
 
 mac {
     # homebrew openssl
-    INCLUDEPATH += /opt/local/include
+    BREW_OPENSSL = $$system("brew --prefix openssl")
-    LIBS += -L/opt/local/lib
+    INCLUDEPATH += $$BREW_OPENSSL/include
+    LIBS += -L$$BREW_OPENSSL/lib
 
     LIBS += -lcrypto -framework CoreServices
 }