[ca] New rules: PRESENCIA, UN_I_ALTRE, UNA_I_ALTRA
add +.bak files to .gitignore
[ca] Improved suggestions in rule HI_HA_QUE
[ca] Added more words to replace.txt
[ca] Improved rule COM_COM_A
[ca] Improved rule COM_PER_A
[ca] Improved rule ALA_A_LA
[ca] Fixed problem in example, rule ALA_A_LA
don't sort rule matches on sentence level, as all matches are sorted anyway at the end
improve method name: isSentStart() -> isSentenceStart()
make isLanguageSupported() and getLanguageForShortName() case-insensitive (http://sourceforge.net/p/languagetool/bugs/187/)
Make use of action property for keeping controls state in sync.
improve text of exception message
fix: the recent min/max changes caused a bug where of two matches of the same rule in a sentence only one was found (this became apparent  with the nightly test for Italian: http://languagetool.org/regression-tests/20130820/result_it_20130820.html)
small readability cleanups
small javadoc fixes
tiny code cleanup
use i18n text.
move common code to LanguageTool common GUI
update marker comment