Translated instructions to English

Used the regular README to turn instructions into English.

README-ENG.md

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+# Installation of Engelsystem
+
+## Requirements:
+ * PHP 5.4.x (cgi-fcgi)
+ * MySQL-Server 5.5.x
+ * Webserver, i.e. lighttpd, nginx, or Apache
+
+## Directions:
+ * Clone the master branch with the submodules: `git clone --recursive https://github.com/engelsystem/engelsystem.git`
+ * Webserver must have write access to the 'import' directory and read access for all other directories
+ * Webserver must be public.
+
+ * Recommended: Directory Listing should be disabled.
+ * There must a be MySQL database created with a user who has full rights to that database.
+ * It must be created by the db/install.sql and db/update.sql files.
+ * If necessary, create a config/config.php to override values from config/config.default.php.
+ * In the browser, login with credentials admin:asdfasdf and change the password.
+
+Engelsystem can now be used.
+
+## Session Settings:
+ * Make sure the config allows for sessions.
+ * Both Apache and Nginx allow for different VirtualHost configurations.
+
+Report Bugs: https://github.com/engelsystem/engelsystem/issues