#73 Basic speller support

[vlad tepes]

Added underlining misspelled text while typing. It can be disabled by (F7) or the tools menu.
The underline is gone when the text object is deselected.

To install the patch, you will need to install the packages: aspell, libaspell-dev, aspell-en and libaspell15.
In order to include the new dependencies, the makefile has been changed, so you will need to run the following commands after applying it in order to recreate the makefile:
autoconf
./configure
aclocal
automake

then of course
make
sudo make install and you have a xournal with speller support.

[vlad tepes]

[vlad tepes]

Update to version 0.4.6

[vlad tepes]

Update to version 0.4.7

[vlad tepes]

Note: in the patch for version 0.4.7, you can set the speller language using the XOURNAL_SPELLER_LANG environment variable. The default value if this variable is unset is "en_US"