Big refactor, v2.0.0, PR #8

Merge commits:
  Update assets files for WP Plugins Directory
  Deploy: Make naked version even more naked
  Rename author to "Redbit s.r.o." (slug redbitcz)
  Add product icon for
  Rename plugin as "SimpleShop.cz" (slug simpleshop-cz)
  Add readme.txt
  Literally mark MIT license as compatible with GNU General Public License
  Refactoring
  Fix Code style
  Refactor classes

Author: jakubboucek

LICENSE

@@ -18,4 +18,6 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+SOFTWARE.
+
+License IS COMPATIBLE with GNU General Public License.

assets/banner-772x250.png

@@ -3,6 +3,7 @@
 *.idea*
 *.idea*
 *nbproject*
+*assets*
 *dist*
 composer.json
 composer.lock

assets/icon-128x128.png

@@ -6,7 +6,7 @@
  * @author Redbit s.r.o. <info@redbit.cz>
  */
 
-$deploy          = new DeployScript( 'simple-shop-connector' );
+$deploy          = new DeployScript( 'simpleshop-cz' );
 $deploy->distDir = __DIR__ . '/dist';
 
 try {
@@ -92,7 +92,7 @@ private function buildPackage() {
 			__DIR__ . '/' . $this->productName . '.php',
 			array(
 				'Version: dev-master'                            => sprintf( 'Version: %s', $this->getNakedVersion() ),
-				'define(\'SSC_PLUGIN_VERSION\',\'dev-master\');' => sprintf( 'define(\'SSC_PLUGIN_VERSION\',\'%s\');',
+				'define( \'SIMPLESHOP_PLUGIN_VERSION\', \'dev-master\' );' => sprintf( 'define( \'SIMPLESHOP_PLUGIN_VERSION\', \'%s\' );',
 					$this->version ),
 			),
 			$this->distDir
@@ -191,12 +191,12 @@ private function zip( $fileOrPath, $zip, $baseDir = __DIR__ ) {
 	}
 
 	/**
-	 * Strips "v" from versions (v1.2.3 -> 1.2.3)
+	 * Strips "v" from versions (v1.2.3-beta -> 1.2.3)
 	 *
 	 * @return bool|string
 	 */
 	private function getNakedVersion() {
-		return substr( $this->version, 1 );
+		return preg_replace('/^v(\d+\.\d+\.\d+)(?:-.*)+$/D', '$1', $this->version);
 	}
 
 	/**