#6 Fixed help texts; some coding style clean-up
Squashed commit of the following:

commit c681487011eb2ac12f1819834213a78506322ca4
Author: drodler <drodler@laterpay.net>
Date:   Fri Jul 18 09:06:39 2014 +0200

    whitespace

commit 2a5f5f3e1e4c9cd2a3ad3ef1868f422a15824622
Merge: 05c3dd5 72015fa
Author: Tobias Woldrich <twoldrich@laterpay.net>
Date:   Thu Jul 17 16:01:29 2014 +0200

    Merge branch 'master' of https://github.com/laterpay/laterpay-wordpress-plugin

    Conflicts:
    	laterpay/README.txt

commit 05c3dd51739dca48512f57dc65376835714501dd
Author: Tobias Woldrich <twoldrich@laterpay.net>
Date:   Thu Jul 17 15:55:07 2014 +0200

    Added infos about roles and capabilities to readme

    Added infos about roles and capabilities to the readme.

commit 72015fa6a3c84b61cd8f00acc95626769e18b3ec
Author: Tobias Woldrich <twoldrich@laterpay.net>
Date:   Thu Jul 17 15:55:07 2014 +0200

    Added infos about roles and capabilities to readme

    Added infos about roles and capabilities to the readme.

commit 51fd77a4c8797c5c13346acc81537f15f5ad525a
Merge: 4f94f42 5620766
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 15:17:49 2014 +0200

    Merge branch 'master' of github.com:laterpay/laterpay-wordpress-plugin

commit 4f94f42d65f6496dbbfaf7e5ce01fce0261b862e
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 15:16:27 2014 +0200

    #123 Added audio, video, and ebook filetypes to the list of protected filetypes

commit 56207666383d9abe3a704eb028d486e78dee323d
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 15:16:27 2014 +0200

    #123 Added audio, video, and ebook filetypes to the list of protected filetypes

commit c41ef08aecde5306a85b8503458b63051370b78e
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 14:57:09 2014 +0200

    Version bump to 0.9.6; updated changelog

commit 52df61cc3773ac9e5c3e0eaf6c2c80213d9aad51
Merge: cdf51ba 212f9b7
Author: Tobias Woldrich <twoldrich@laterpay.net>
Date:   Thu Jul 17 14:48:24 2014 +0200

    Merge branch 'master' of https://github.com/laterpay/laterpay-wordpress-plugin

commit cdf51ba1c5709b3d241d93eed1c860968af602f3
Author: Tobias Woldrich <twoldrich@laterpay.net>
Date:   Thu Jul 17 14:47:33 2014 +0200

    Fixed Markup for Readme

    Fixed the markup for the readme.

commit 212f9b75acbfca8895591ee28b1d65a6b53b9ca6
Merge: e344ffc d7b025a
Author: Mikhail Turalenka <mturalenka@scnsoft.com>
Date:   Thu Jul 17 15:43:49 2014 +0300

    Merge pull request #130 from laterpay/feature/115_compatibility_with_php_5_2

    #115 Only convert array into SplFixedArray if PHP >= 5.3 is available

commit d7b025a113b35c02a82312339e94fc89f3dec8f2
Merge: d73abfb 81ecb68
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 12:23:14 2014 +0200

    Merge branch 'feature/115_compatibility_with_php_5_2' of github.com:laterpay/laterpay-wordpress-plugin into feature/115_compatibility_with_php_5_2

    Conflicts:
    	laterpay/vendor/Browscap.php

commit d73abfb9d46523917f26fcdeabda1248ef01958e
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 11:44:39 2014 +0200

    #115 Only convert array into SplFixedArray if PHP >= 5.3 is available

commit 81ecb68323787ac723f05faad3acc1bd14760d26
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 11:44:39 2014 +0200

    #115 Only convert array into SplFixedArray if PHP >= 5.3 is available

commit e344ffc1a1cafe37518209f704893cd8ab33a161
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 11:32:15 2014 +0200

    Updated plugin description in laterpay.php

commit 4048e702d1dea2254651b2a68af8ed795d525826
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 11:24:04 2014 +0200

    Small CSS fix

commit 197c9b567b09fd042077cb29c2eccffb4846a793
Author: drodler <drodler@laterpay.net>
Date:   Thu Jul 17 01:38:49 2014 +0200

    Fixed broken pointer caused by name changes in menu_pages

commit 3a2bd5b4a68109b663ca25b1a966b1cc61e1ebdf
Merge: 24cd63f d49c565
Author: drdla <dominik.rodler@gmail.com>
Date:   Wed Jul 16 23:41:19 2014 +0200

    Merge pull request #129 from laterpay/feature/48_requirements_check

    #48. added check for write permissions

commit d49c56592a970432baa49a67a7255e9cca930fcb
Author: drodler <drodler@laterpay.net>
Date:   Wed Jul 16 23:40:37 2014 +0200

    #48 added a few comments and revised wording if messages

commit 2c38d3230cc839ef307fb8f69952bf217ac55437
Author: Mihail Turalenka <mturalenka@scnsoft.com>
Date:   Thu Jul 17 00:25:39 2014 +0300

    #48. removed unused variable

commit c35e898bbecd380f83a39d8bd64146c7375800c5
Author: Mihail Turalenka <mturalenka@scnsoft.com>
Date:   Thu Jul 17 00:24:08 2014 +0300

    #48. added check for dit permissiomns