Fix ssl-linking/dependencies-issues on rhel distros.

Making sure libssl/libcrypto is linked to the libs provided by the
openssl098e-compatibility-package instead of bundling them with spotify-make.

Also fixing issue when ldconfig -p returns more than one lib.
The "ldconfig -p" could actually return multiple libraries, like on rhel
when looking up possible references to libplc4.so it returns,

- libplc4.so (libc6,x86-64) => /lib64/libplc4.so
- libplc4.so (libc6,x86-64) => /usr/lib64/libplc4.so

Add -m1 option to egrep to make sure that only the first reference is
used for linkage.
Making sure the openssl098e-package is installed on rhel distros.

Trying to make sure we got necessary libraries before continuing the
build process on rhel systems.
Fixing comment

Making comment to make more sense (now when we are not querying the rpm
database).
Merge pull request #24 from patchon/master

Fix ssl-linking/dependencies-issues on rhel distros.