Merge branch 'README_update' into 'master'

Updated readme

See merge request mer-core/libmlocale!9

README.md

@@ -0,0 +1,45 @@
+This source tree contains the MLocale library
+
+# Building
+
+```
+./configure
+make
+sudo make install
+```
+
+The library will be installed by default with a prefix of /usr/local,
+see ./configure -help for options.
+
+The reference documentation can be built with ```make doc```,
+if doxygen is available.
+
+## Building with Sailfish SDK's QtCreator
+
+With the default SDK setup the permissions of the files in the SDK build engine's /home/src1 folder will loose the
+executable permissions. This will make the compiling of the project with QtCreator fail with a similar error:
+
+
+```
+RPM build errors:
+/var/tmp/rpm-tmp.L4oyur: line 41: ./configure: Permission denied
+error: Bad exit status from /var/tmp/rpm-tmp.L4oyur (%build)
+    Bad exit status from /var/tmp/rpm-tmp.L4oyur (%build)
+```
+
+To workaround this you can override the FMODE_HOME_MERSDK variable in the /etc/mersdk.env.systemd config file,
+or you can drop the fmode and dmode mount options in /lib/systemd/system/home-mersdk.service.
+
+## Build dependencies
+- Qt development headers
+- pkg-config
+
+## Optional dependencies
+
+If found, the following libraries will enable additional
+features in the MLocale library:
+
+- ICU: I18N and L10N extensions
+
+
+