README.md: Fix some typos

dependend -> dependent
specifed -> specified
packagin -> packaging
nect -> next

Also fix some grammar and style issues.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
src: Fix more typos in comments

adresses -> addresses
indefinate -> indefinite

Signed-off-by: Stefan Weil <sw@weilnetz.de>
src: Fix spelling in code and comments

adress -> address (and variants)

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Fix javac warnings (redundant cast)

These warnings are fixed:

[javac] Goobi/src/de/sub/goobi/forms/ModuleServerForm.java:190: warning: [cast] redundant cast to Element
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:111: warning: [cast] redundant cast to Werkstueck
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:128: warning: [cast] redundant cast to Vorlage
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:175: warning: [cast] redundant cast to Werkstueck
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:186: warning: [cast] redundant cast to Vorlage
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:210: warning: [cast] redundant cast to Prozesseigenschaft
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:224: warning: [cast] redundant cast to Werkstueck
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:227: warning: [cast] redundant cast to Werkstueckeigenschaft
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:241: warning: [cast] redundant cast to Vorlage
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:244: warning: [cast] redundant cast to Vorlageeigenschaft
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:275: warning: [cast] redundant cast to Werkstueck
[javac] Goobi/src/de/sub/goobi/modul/ExtendedDataImpl.java:286: warning: [cast] redundant cast to Vorlage

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Merge pull request #186 from stweil/typos

Typos, compiler warnings fixed